question_id stringlengths 8 35 | subject stringclasses 3
values | chapter stringclasses 90
values | topic stringclasses 459
values | question stringlengths 17 24.5k | options stringlengths 2 4.26k | correct_option stringclasses 6
values | answer stringclasses 460
values | explanation stringlengths 1 10.6k | question_type stringclasses 3
values | paper_id stringclasses 154
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|---|---|---|---|---|---|---|---|---|---|---|---|
H1N8OkCJzvninLLpHWFlJ | physics | electromagnetic-waves | em-spectrum | Match the <b>List - I</b> (Phenomenon associated with electromagnetic radiation) with <b>List - II</b> (Part of electromagnetic spectrum) and select the correct code from the choices given the lists :
<br/><br/><style type="text/css">
.tg {border-collapse:collapse;border-spacing:0;}
.tg td{font-family:Arial, sans-se... | [{"identifier": "A", "content": "(I)-(A), (II)-(B), (III)-(B), (IV)-(C)"}, {"identifier": "B", "content": "(I)-(A), (II)-(B), (III)-(C), (IV)-(C)"}, {"identifier": "C", "content": "(I)-(D), (II)-(C), (III)-(A), (IV)-(B)"}, {"identifier": "D", "content": "(I)-(B), (II)-(... | ["B"] | null | <p>(I) These have a wavelength of 589 nm – 589.6 nm that corresponds to visible light in the yellow region.
The correct matching is (I)-(A), Visible radiation. The given wavelength range falls within the visible spectrum.</p>
<p>(II) The temperature is 2.7 K, which corresponds to the emission of microwaves.
The correct... | mcq | jee-main-2014-online-11th-april-morning-slot | 10,424 |
k7ytCLWB74M9WShStuaww | physics | electromagnetic-waves | em-spectrum | If microwaves, X rays, infracted, gamma rays, ultra-violet, radio waves and visible parts of the electromagnetic spectrum by M, X, I, G, U, R and V, the following is the arrangement in ascending order of wavelength : | [{"identifier": "A", "content": "R, M, I, V, U, X and G"}, {"identifier": "B", "content": "M, R, V, X, U, G and I"}, {"identifier": "C", "content": "G, X, U, V, I, M and R"}, {"identifier": "D", "content": "I, M, R, U, V, X and G"}] | ["C"] | null | The arrangement in ascending order of wavelength will be
<br/><br/>$$
\lambda_{\mathrm{G}}<\lambda_{\mathrm{X}}<\lambda_{\mathrm{U}}<\lambda_{\mathrm{v}}<\lambda_{\mathrm{I}}<\lambda_{\mathrm{M}}<\lambda_{\mathrm{R}}
$$ | mcq | jee-main-2014-online-19th-april-morning-slot | 10,425 |
WAwUW3jVZsfVH4PGnJHx0 | physics | electromagnetic-waves | em-spectrum | Microwave oven acts on the principle of : | [{"identifier": "A", "content": "transferring electrons from lower to higher energy levels in water molecule"}, {"identifier": "B", "content": "giving rotational energy to water molecules "}, {"identifier": "C", "content": "giving vibrational energy to water molecules"}, {"identifier": "D", "content": "giving translati... | ["C"] | null | Microwave over use the principle of giving vibrational energy to water molecule. | mcq | jee-main-2016-online-9th-april-morning-slot | 10,426 |
6w6lQuuDWsYO91LpgAp50 | physics | electromagnetic-waves | em-spectrum | Arrange the following electromagnetic
radiations per quantum in the order of
increasing energy :
<br/><br/>A : Blue light B : Yellow light
<br/><br/>C : X-ray D : Radiowave.
| [{"identifier": "A", "content": "C, A, B, D"}, {"identifier": "B", "content": "B, A, D, C"}, {"identifier": "C", "content": "D, B, A, C"}, {"identifier": "D", "content": "A, B, D, C"}] | ["C"] | null | <p>Energy is in terms of increasing wavelength, we have</p>
<p>$$\lambda$$<sub>X-rays</sub> < $$\lambda$$<sub>Blue light</sub> < $$\lambda$$<sub>Yellow light</sub> < $$\lambda$$<sub>Radio waves</sub></p>
<p>Since $$E = {{hc} \over \lambda }$$</p>
<p>Therefore, order of increasing energy is</p>
<p>E<sub>Radio waves</sub... | mcq | jee-main-2016-offline | 10,427 |
1FaB6PXo2jufHbi6fPjgy2xukf6dxkff | physics | electromagnetic-waves | em-spectrum | Choose the correct option relating wave lengths of different parts of electromagnetic wave spectrum: | [{"identifier": "A", "content": "$$\\lambda $$<sub>radio waves</sub> > $$\\lambda $$<sub>micro waves</sub> > $$\\lambda $$<sub>visible</sub> > $$\\lambda $$<sub>x-rays</sub>"}, {"identifier": "B", "content": "$$\\lambda $$<sub>visible</sub> > $$\\lambda $$<sub>x-rays</sub> > $$\\lambda $$<sub>radio waves... | ["A"] | null | Decreasing order of wavelength,
<br><br>Radio wave > Microwave > Infrared > <br>ROYGBIV(Visiable Resion) > Ultraviolet > X rays > $$\gamma $$ rays
<br><br>So the correct order -
<br><br>$$\lambda $$<sub>radio waves</sub> > $$\lambda $$<sub>micro waves</sub> > $$\lambda $$<sub>visible</sub> > ... | mcq | jee-main-2020-online-4th-september-morning-slot | 10,428 |
j4bezf75HbErwCQpP8jgy2xukfl2kjj2 | physics | electromagnetic-waves | em-spectrum | The correct match between the entries in
column I and column II are :
<br/><br/><style type="text/css">
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.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}
.tg... | [{"identifier": "A", "content": "(a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)"}, {"identifier": "B", "content": "(a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)"}, {"identifier": "C", "content": "(a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)"}, {"identifier": "D", "content": "(a)-(i), (b)-(iii), (c)-(iv), (d)-(ii)"}] | ["B"] | null | Decreasing order of wavelength,
<br><br>Radio wave > Microwave > Infrared > ROYGBIV(Visiable Resion) > Ultraviolet > X rays > $$\gamma $$ rays
<br><br>$$ \therefore $$ Correct order is
<br><br>(a)-(iv), (b)-(ii), (c)-(i), (d)-(iii) | mcq | jee-main-2020-online-5th-september-evening-slot | 10,429 |
MyDXxdIgrukOhwRk5V1klroi84o | physics | electromagnetic-waves | em-spectrum | Match List - I with List - II.<br/><br/><table>
<thead>
<tr>
<th></th>
<th>List I</th>
<th></th>
<th>List II</th>
</tr>
</thead>
<tbody>
<tr>
<td>(a)</td>
<td>Source of microwave frequency</td>
<td>(i)</td>
<td>Radioactive decay of nucleus</td>
</tr>
<tr>
<td>(b)</td>
<td>Source of infrared frequency</td>
<td>(ii)</td>... | [{"identifier": "A", "content": "(a)-(vi), (b)-(v), (c)-(i), (d)-(iv)"}, {"identifier": "B", "content": "(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)"}, {"identifier": "C", "content": "(a)-(ii), (b)-(iv), (c)-(vi), (d)-(iii)"}, {"identifier": "D", "content": "(a)-(vi), (b)-(iv), (c)-(i), (d)-(v)"}] | ["B"] | null | (a) Source of microwave frequency - (ii) Magnetron<br><br>(b) Source of infra red frequency - (iv) Vibration of atom and molecules<br><br>(c) Source of gamma ray - (i) Radio active decay of nucleus<br><br>(d) Source of X-ray - (iii) inner shell electron | mcq | jee-main-2021-online-24th-february-evening-slot | 10,430 |
z6QXxTMVv3AwSf32Cj1klt3ogw7 | physics | electromagnetic-waves | em-spectrum | The wavelength of an X-ray beam is 10$$\mathop A\limits^o $$. The mass of a fictitious particle having the same energy as that of the X-ray photons is $${x \over 3}h$$ kg. The value of x is __________. (h = Planck's constant) | [] | null | 10 | Given wavelength of an x-ray beam = 10$$\mathop A\limits^o $$<br><br>$$ \because $$ E = $${{hc} \over \lambda } = m{c^2}$$<br><br>$$ \Rightarrow $$ m = $${h \over {c\lambda }}$$<br><br>The mass of a fictitious particle having the same energy as that of the x-ray photons = $${x \over 3}$$h kg<br><br>$$ \therefore $$ $${... | integer | jee-main-2021-online-25th-february-evening-slot | 10,431 |
1l57q65ka | physics | electromagnetic-waves | em-spectrum | <p>Match List-I with List-II :</p>
<p><style type="text/css">
.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}
.tg th{border-color:black;border-style:solid;... | [{"identifier": "A", "content": "(a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)"}, {"identifier": "B", "content": "(a)-(iii), (b)-(i), (c)-(ii), (d)-(iv)"}, {"identifier": "C", "content": "(a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)"}, {"identifier": "D", "content": "(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)"}] | ["A"] | null | <p>UV rays are used to sterilize surgical material. </p>
<p>Microwaves are used in radar system.</p>
<p>Infrared are used for green house effect and</p>
<p>X-rays are used to study crystal structure.</p> | mcq | jee-main-2022-online-27th-june-morning-shift | 10,432 |
1l58i2ej5 | physics | electromagnetic-waves | em-spectrum | <p>Which is the correct ascending order of wavelengths?</p> | [{"identifier": "A", "content": "$$\\lambda$$<sub>visible</sub> < $$\\lambda$$<sub>X-ray</sub> < $$\\lambda$$<sub>gamma-ray</sub> < $$\\lambda$$<sub>microwave</sub>"}, {"identifier": "B", "content": "$$\\lambda$$<sub>gamma-ray</sub> < $$\\lambda$$<sub>X-ray</sub> < $$\\lambda$$<sub>visible</sub> < $$\\lambda$$<sub>micr... | ["B"] | null | <p>Wavelength of microwave is maximum then visible light then X-rays and then gamma rays so the correct order will be</p>
<p>$$\lambda$$<sub>gamma-ray</sub> < $$\lambda$$<sub>Xray</sub> < $$\lambda$$<sub>visible</sub> < $$\lambda$$<sub>microwave</sub></p> | mcq | jee-main-2022-online-26th-june-evening-shift | 10,433 |
1l6p5a0dm | physics | electromagnetic-waves | em-spectrum | <p>Match List - I with List - II :</p>
<p><style type="text/css">
.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}
.tg th{border-color:black;border-style:so... | [{"identifier": "A", "content": "(a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)"}, {"identifier": "B", "content": "(a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)"}, {"identifier": "C", "content": "(a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)"}, {"identifier": "D", "content": "(a)-(iii), (b)-(i), (c)-(ii), (d)-(iv)"}] | ["B"] | null | <p>UV - Water purification</p>
<p>X-rays - Diagnostic tool in medicine</p>
<p>Microwave - Communication, Radar</p>
<p>Infrared wave - Improving visibility in foggy days.</p> | mcq | jee-main-2022-online-29th-july-morning-shift | 10,434 |
1ldog4ddy | physics | electromagnetic-waves | em-spectrum | <p>Match List I with List II :</p>
<p><style type="text/css">
.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}
.tg th{border-color:black;border-style:solid;... | [{"identifier": "A", "content": "A-I, B-III, C-IV, D-II"}, {"identifier": "B", "content": "A-IV, B-III, C-II, D-I"}, {"identifier": "C", "content": "A-IV, B-I, C-II, D-III"}, {"identifier": "D", "content": "A-I, B-II, C-III, D-IV"}] | ["C"] | null | 1. Klystron valve used to produce Microwave
<br/><br/>2. Gamma ray $\rightarrow$ Radioactive decay
<br/><br/>3. Radio wave $\rightarrow$ Rapid acceleration and deacceleration of electrons in aerials
<br/><br/>4. X-ray $\rightarrow$ Inner shell electrons | mcq | jee-main-2023-online-1st-february-morning-shift | 10,436 |
lgnys79e | physics | electromagnetic-waves | em-spectrum | Match <b>List I</b> with <b>List II</b> of Electromagnetic waves with corresponding wavelength range :<br/><br/>
<style type="text/css">
.tg {border-collapse:collapse;border-spacing:0;width:100%}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidd... | [{"identifier": "A", "content": "(A)-(I), (B)-(IV), (C)-(II), (D)-(III)"}, {"identifier": "B", "content": "(A)-(IV), (B)-(I), (C)-(II), (D)-(III)"}, {"identifier": "C", "content": "(A)-(IV), (B)-(I), (C)-(III), (D) -(II)"}, {"identifier": "D", "content": "(A)-(IV), (B)-(II), (C)-(I), (D)-(III)"}] | ["B"] | null | The correct matching of the electromagnetic waves with their corresponding wavelength ranges is:
<br/><br/>
(A) Microwave --> (IV) 0.1 m to 1 mm<br/><br/>
(B) Ultraviolet --> (I) 400 nm to 1 nm<br/><br/>
(C) X-Ray --> (II) 1 nm to $10^{-3}$ nm<br/><br/>
(D) Infra-red --> (III) 1 mm to 700 nm<br/><br/>
Therefore, the co... | mcq | jee-main-2023-online-15th-april-morning-shift | 10,437 |
1lgrhh4x2 | physics | electromagnetic-waves | em-spectrum | <p>Given below are two statements: one is labelled as Assertion $$\mathbf{A}$$ and the other is labelled as Reason $$\mathbf{R}$$</p>
<p>Assertion A : EM waves used for optical communication have longer wavelengths than that of microwave, employed in Radar technology.</p>
<p>Reason R : Infrared EM waves are more energe... | [{"identifier": "A", "content": "Both $$\\mathrm{A}$$ and $$\\mathrm{R}$$ are true but $$\\mathrm{R}$$ is NOT the correct explanation of $$\\mathrm{A}$$"}, {"identifier": "B", "content": "$$\\mathrm{A}$$ is true but $$\\mathrm{R}$$ is false"}, {"identifier": "C", "content": "Both $$\\mathrm{A}$$ and $$\\mathrm{R}$$ are... | ["D"] | null | Optical communication is performed in the frequency range of $1 \mathrm{THz}$ to $1000 \mathrm{THz}$.
(Microwave to UV)<br/><br/>
So, EM waves used for optical communication have shorter wavelength than that of microwaves used in RADAR.<br/><br/>
Also, $U_{\text {INFRARED }}>U_{\text {MICROWAVE }}$<br/><br/>
$\therefor... | mcq | jee-main-2023-online-12th-april-morning-shift | 10,438 |
lv9s20u5 | physics | electromagnetic-waves | em-spectrum | <p>Match List I with List II :</p>
<p><style type="text/css">
.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}
.tg th{border-color:black;border-style:solid;... | [{"identifier": "A", "content": "(A)-(I), (B)-(III), (C)-(II), (D)-(IV)"}, {"identifier": "B", "content": "(A)-(III), (B)-(II), (C)-(IV), (D)-(I)\n"}, {"identifier": "C", "content": "(A)-(IV), (B)-(III), (C)-(II), (D)-(I)\n"}, {"identifier": "D", "content": "(A)-(II), (B)-(I), (C)-(IV), (D)-(III)"}] | ["B"] | null | <p>To match the given List I (EM-Wave) with List II (Wavelength Range), we need to understand the typical wavelength ranges associated with each type of electromagnetic (EM) wave mentioned in List I.</p>
<p>Here's the matching based on known wavelength ranges:</p>
<ul>
<li><strong>Infra-red</strong>: Infrared radiati... | mcq | jee-main-2024-online-5th-april-evening-shift | 10,440 |
dyQX5AgaDwerQRJ4 | physics | electronic-devices | digital-circuits | In the circuit below, $$A$$ and $$B$$ represent two inputs and $$C$$ represents the output.
<img src="data:image/png;base64,UklGRm4GAABXRUJQVlA4IGIGAADwUQCdASpYAjYBP4G41ma2LKwnoLEpKsAwCWlu4XNBG/P58eWc+sr3CuymU2DTZBasfuz/cAseULi1XDTB6F8gqc2u4D0L5BU5tdwHoXyCpza7gPQvkFTm13AehfIKnNruA9C+QVObXcB6FvTtyvald6Dnv8hBNSZSYAUQbnU... | [{"identifier": "A", "content": "NOR gate "}, {"identifier": "B", "content": "AND gate "}, {"identifier": "C", "content": "NAND gate "}, {"identifier": "D", "content": "OR gate"}] | ["D"] | null | <img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265430/exam_images/qubyqcpo9vgde0dx8wa7.webp" loading="lazy" alt="AIEEE 2008 Physics - Semiconductor Question 178 English Explanation">
<br><br><style type="text/css">
.tg {border-collapse:collapse;border-spacing:0;border-color:#9... | mcq | aieee-2008 | 10,441 |
GwA90mN08pR6FIV4 | physics | electronic-devices | digital-circuits | The logic circuit shown below has the input waveforms $$'A'$$ and $$'B'$$ as shown. Pick out the correct output waveform.
<img src="data:image/png;base64,UklGRr4MAABXRUJQVlA4ILIMAAAwUwCdASomAtAAPm02lkkkIqKhITQJ8IANiWlu8p8dzT+CN+dj4O/jva//dPEXw8+T/YH8dPjBZ6/s38b/rH+0/MT7x/rn/M/pHi/8Yf7D1Avx7+P/0v+SfsN+Y/tc/UD+q+CpAx7BH... | [{"identifier": "A", "content": "<img class=\"question-image\" src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734264267/exam_images/cttlt4cbtxyp7b0p6rdq.webp\" loading=\"lazy\" alt=\"AIEEE 2009 Physics - Semiconductor Question 177 English Option 1\"> "}, {"identifier": "B", "content": "<img class=\"question-... | ["D"] | null | Here $$y = \overline {\left( {\overline A + \overline B } \right)} = \overline {\overline A } .\overline {\overline B } = A.B.$$
<br><br>Thus it is an $$AND$$ gate for which truth table is
<br><br><style type="text/css">
.tg {border-collapse:collapse;border-spacing:0;border-color:#999;}
.tg td{font-family:Arial, ... | mcq | aieee-2009 | 10,442 |
skiXcQVLCCxbWjaN | physics | electronic-devices | digital-circuits | The combination of gates shown below yields
<img src="data:image/png;base64,UklGRpgMAABXRUJQVlA4IIwMAACwYgCdASpSAg0BPm02mEkkIyKhIRXpgIANiWlu4XJyfmNwsf4q/uHav/ff673lPpn8F+RG6FfG3ea/Ffxj+4f6D45/sn+Y/qX6vfjX7e+87429gj1H/gf5h/SP9Pwy0DXsBd0f9J/Kv7P+snxle7fp96t/WX9G/gA/Tv/afxLzw/Fd8A/Ub4Bvyz/2f5l/avZk/zv41/cP2Z9vvzL/1f5L/i/... | [{"identifier": "A", "content": "OR gate "}, {"identifier": "B", "content": "NOT gate "}, {"identifier": "C", "content": "XOR gate"}, {"identifier": "D", "content": "NAND gate"}] | ["A"] | null | The final boolean expression is,
<br><br>$$X = \overline {\left( {\overline A .\overline B } \right)} = \overline {\overline A } + \overline {\overline B } = A + B \Rightarrow \,\,OR\,gate$$ | mcq | aieee-2010 | 10,443 |
vUCzm5XSldohMn9P | physics | electronic-devices | digital-circuits | A diode detector is used to detect an amplitude modulated wave of $$60\% $$ modulation by using a condenser of capacity $$250$$ picofarad in parallel with a load resistance $$100$$ kilo $$ohm.$$ Find the maximum modulated frequency which could be detected by it.
<img src="data:image/png;base64,UklGRi4IAABXRUJQVlA4ICIIA... | [{"identifier": "A", "content": "$$10.62$$ $$MHz$$"}, {"identifier": "B", "content": "$$10.62$$ $$kHz$$"}, {"identifier": "C", "content": "$$5.31$$ $$MHz$$"}, {"identifier": "D", "content": "$$5.31$$ $$kHz$$"}] | ["B"] | null | Given : Resistance $$R=100$$ kilo $$ohm=100$$ $$ \times {10^3}\Omega $$
<br><br>$$\therefore$$ Capacitance $$C=250$$ picofarad $$ = 250 \times {10^{ - 12}}F$$
<br><br>$$\tau = RC = 100 \times {10^3} \times 250 \times {10^{ - 12}}\,\sec $$
<br><br>$$ = 2.5 \times {10^7} \times {10^{ - 12}}\sec $$
<br><br>$$ = 2.5 \time... | mcq | jee-main-2013-offline | 10,445 |
OKGdJNi6Em5CbiD4m31DZ | physics | electronic-devices | digital-circuits | Truth table for the following digital circuit will be :
<br/><img src="data:image/png;base64,UklGRlAGAABXRUJQVlA4IEQGAACQbgCdASoAAzUBP4HA3WQ2Ma6mobUposAwCWlu8lX9m8HXOobv68sfXh5l4PETseInY8QnKQqjK+LhLy4uO2YTE1TFM4Mn5wZPzgyfm0q5B4uSTih24XgLTTy73lFauJCltp2/0nvdkgqfwy/AoE46PgUQyb52PETseInY8ROwzBchbhCgTuqq5UtsgB1ZtoKKYM8zTqz... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l7wzsbjr/10e068c8-954d-4871-8811-4ad3c08b2a67/297d4f80-31a0-11ed-b3ea-45214d807530/file-1l7wzsbjs.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l7wzsbjr/10e068c8-954d-4871-8811-4ad3c08b2a67/297... | ["C"] | null | <p>The given circuit is</p>
<p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l32mwyfb/8963c097-4517-4b46-9c68-a1e8fcfdb141/72b87c80-d1bd-11ec-9218-efb2cf12c71b/file-1l32mwyfc.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l32mwyfb/8963c097-4517-4b46-9c68-a1e8fcfdb141/72b87c80... | mcq | jee-main-2018-online-15th-april-evening-slot | 10,449 |
3JJSmIMeakj9PeaAVogH8 | physics | electronic-devices | digital-circuits | To get output 1 at R, for the given logic gate circuit the input values must be
<br/><br/><img src="data:image/png;base64,UklGRrQKAABXRUJQVlA4IKgKAABwfwCdASoAAxMBP4HA2GS2MKynIhHZysAwCWlu4WmC4mNwvH6W7TNn3wRs/+z+XCD9ZR/3uy4nnf/3v8hPOzq1+5ZTVr9hdt6JWABfuiQpZTVr9yymrX7llNWr1KkEH+q4P99BeAzYyfmLUK1GzCUw2Wbs+1DqnziDd2A3rcp6n... | [{"identifier": "A", "content": "x = 0, y = 0"}, {"identifier": "B", "content": "x = 1, y = 0"}, {"identifier": "C", "content": "x = 0, y = 1"}, {"identifier": "D", "content": "x = 1, y = 1"}] | ["B"] | null | P = $$\overline x + $$ y
<br><br>Q = $$\overline {\overline y .x} $$ = y + $$\overline x $$
<br><br>Output, R = $$\overline {P + Q} $$
<br><br>To make R = 1
<br><br>$$\overline {P + Q} $$ should be = 1
<br><br>$$ \therefore $$ P + Q must be 0
<br><br>$$ \therefore $$ ($$\overline x + $$ y) + (y + $$\overline x $$) = ... | mcq | jee-main-2019-online-10th-january-morning-slot | 10,450 |
K4ghSQUMkqxYrQQIz7Xso | physics | electronic-devices | digital-circuits | The output of the given logic circuit is :
<br/><br/><img src="data:image/png;base64,UklGRmoHAABXRUJQVlA4IF4HAACwZgCdASoAAxEBP4HA2GU2L6ynIPM56sAwCWlu+F6oJLd5Nlvj5XtFbOntTlpBAGV4r/HpRCZx2WVUv2QAb+x/44uFD//BfZiv+RFyKqX7IAN/ZABt4bp7ICTRJHKHZZrkj/rqEoYjAXfLvl3y75d8u+XfEYbZ/Z2x/6RV2roPfXucNZJmAO+veMRIm7twsNeG63rMUKiRHdFfqnr... | [{"identifier": "A", "content": "$$\\overline A B$$"}, {"identifier": "B", "content": "$$AB + \\overline {AB} $$"}, {"identifier": "C", "content": "$$A\\overline B + \\overline A B$$"}, {"identifier": "D", "content": "$$A\\overline B $$"}] | ["D"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264111/exam_images/jclinyguedkvuohqxwmh.webp" style="max-width: 100%; height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2019 (Online) 12th January Morning Slot Physics - Semiconductor Question 149 English Explanation">
<br>Y $$ = ... | mcq | jee-main-2019-online-12th-january-morning-slot | 10,451 |
kIaHPpe7UD2cHGNnkgfiE | physics | electronic-devices | digital-circuits | The logic gate equivalent to the given logic
circuit is :-
<img src="data:image/png;base64,UklGRtwHAABXRUJQVlA4INAHAAAwagCdASoAAzABP4G61mY2LawnITKJOsAwCWlu4WpRG/Pz854xVhnGu3V3Zyep+f0duZWeZ//AxX2jv9LhglUoS3khkalqcwkK3ZbQaL7R82rnWiU959o+bVzrRKe81CtAfzSLt0jWmS5tchmKgMe5CHqmy7wNp5OQJaggusKj6wqPrCo+sKj6wqYRAKBCApkLBIp+jzcgp... | [{"identifier": "A", "content": "NAND"}, {"identifier": "B", "content": "AND"}, {"identifier": "C", "content": "NOR"}, {"identifier": "D", "content": "OR"}] | ["D"] | null | Truth table can be formed as
<br><br>
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.tg th{font-family:Arial, sans-serif;f... | mcq | jee-main-2019-online-9th-april-evening-slot | 10,452 |
HydtyOe5zKb5oswrCajgy2xukfaw9mzj | physics | electronic-devices | digital-circuits | Identify the operation performed by the circuit given below :
<img src="data:image/png;base64,UklGRlIOAABXRUJQVlA4IEYOAADwagCdASr0ARQBPm02mEikIqKhIZO56IANiWlu+F6opR29aZ8NfzL8e/Aj/Bf2D8afIl9D/ZvyO/cr2vP6/+KdSf/O9tn8P/D/5t/yvTL/Efxv+of8L/D/tV7K8AL1B/Yv49/M/91/avTh+of9L8MIAP00/xv8G/on60fIh6X/kP4n/H/aP6cf4D+AeqH/lf4L/KuZy7... | [{"identifier": "A", "content": "AND"}, {"identifier": "B", "content": "NAND"}, {"identifier": "C", "content": "OR"}, {"identifier": "D", "content": "NOT"}] | ["A"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264618/exam_images/lvmn3h5miszvxpf0sn6k.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2020 (Online) 4th September Evening Slot Physics - Semiconductor Question 125 English Explanation">
<br><br>Z = ... | mcq | jee-main-2020-online-4th-september-evening-slot | 10,454 |
MYfBE4uQklII9RvoaWjgy2xukexy21vc | physics | electronic-devices | digital-circuits | In the following digital circuit, what will be the
output at ‘Z’, when the <br/>input (A, B) are (1, 0),
(0, 0), (1, 1,), (0, 1)
<img src="data:image/png;base64,UklGRiILAABXRUJQVlA4IBYLAAAQVwCdASr0AbAAPm0ylkikIqIhIhDLCIANiWlu4Wrh8mNws74x/qX48eBP99/o/7M9at5A9kf3Y9wH4A1rP4b+S/0L/Z/0390PvD+l/27+Tf07/gf3L1f8gHmq/u38N/nP+X8... | [{"identifier": "A", "content": "1, 1, 0, 1"}, {"identifier": "B", "content": "0, 1, 0, 0"}, {"identifier": "C", "content": "1, 0, 1, 1"}, {"identifier": "D", "content": "0, 0, 1, 0"}] | ["D"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263634/exam_images/ekxwwp2rgppe0kixy7cp.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2020 (Online) 2nd September Evening Slot Physics - Semiconductor Question 129 English Explanation 1">
<picture><... | mcq | jee-main-2020-online-2nd-september-evening-slot | 10,456 |
YUA7ZKVooE2ORZaY9A7k9k2k5hhynu8 | physics | electronic-devices | digital-circuits | In the given circuit, value of Y is :
<img src="data:image/png;base64,UklGRjALAABXRUJQVlA4ICQLAADwUgCdASp3AREBPm02mEikIqUhIZeZ4KANiWlu4W5xG/OB8W/3T+N9y/+V7hv0H9r/JT1Uqy74T7uD3X+Nf1X/afmT9+v0b/B+I/pa9Qj0t/dv5H/Mv9V5/O0zAB9Jv8T/H/69/4f8R8Xfu3+y/j/cAeqN/t/4z/QP+H8W/5D/Jf0D+AegFQD/IX+s/nn9V9hD/C/h/8//a73i/N//N/jf9t90z/cfxj... | [{"identifier": "A", "content": "toggles between 0 and 1"}, {"identifier": "B", "content": "1"}, {"identifier": "C", "content": "will not execute"}, {"identifier": "D", "content": "0"}] | ["D"] | null | Y = $$\overline {\overline {AB} .A} $$
<br><br>= $$\overline {\overline {AB} } + \overline A $$
<br><br>= 0 + 0
<br><br>= 0
| mcq | jee-main-2020-online-8th-january-evening-slot | 10,457 |
pSpTTgOzXaeUC4pKFN7k9k2k5gxvtn5 | physics | electronic-devices | digital-circuits | Boolean relation at the output stage-Y for the
following circuit is :
<img src="data:image/png;base64,UklGRtwMAABXRUJQVlA4INAMAACQXgCdASr0Ad0APm02mEikIyqhInHp8VANiWlu/D64wMged3RkpS+Ev5V+MngR/Xf5x+z39R9R/FV559kvUx+Ef5L0xn8A7pD2L+N/yf/c/1/5xfpf+S/lX9T/4H9V9XeAR6a/u/8U/rX/I/rvpU/sP6S+N/VD9LfYU7Vf4D+Jfzr/v/3T4k/WP+D/J/7T7A... | [{"identifier": "A", "content": "A.B"}, {"identifier": "B", "content": "$$\\overline A + \\overline B $$"}, {"identifier": "C", "content": "$$\\overline A .\\overline B $$"}, {"identifier": "D", "content": "A + B"}] | ["C"] | null | Truth table for the given circuit
<br><img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264222/exam_images/w4f9iskddicxgw0imzbe.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2020 (Online) 8th January Morning Slot Physics - Semiconductor Question 13... | mcq | jee-main-2020-online-8th-january-morning-slot | 10,458 |
zP7POlFsOibeboAfCp1klrner7a | physics | electronic-devices | digital-circuits | <img src="data:image/png;base64,UklGRuoPAABXRUJQVlA4IN4PAADwYQCdASoAA7QAPm02mUgkIyKhI1WJmIANiWlu4XPxG/OZ8of5z8ZPCj/T+J/ix9dybbjP5r99f23969rn8l3o8AL8p/n/+X+1fheABfV7z8vpvMzxAu+E8IT0f2CfEqz7/WfsM9IEZUMO5cxvl1DcuY3y6huXMb5dQ3LmN8uoblzG+XUNy4nL1KHiMBl3Y9nkyvYBhjucMJrbj9d+XUNy5jfLqG5cxvlo4+TfR5dfWNTzbdQ3LmM3P4xaCCmmxuRGYdWI... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1la25206x/20ce4f4c-43d3-4b80-8a1b-e5bfbab9e607/1e755690-5c0d-11ed-b429-1bdcfc436fa3/file-1la25206y.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1la25206x/20ce4f4c-43d3-4b80-8a1b-e5bfbab9e607/1e7... | ["D"] | null | The logic circuit is given as
<img src="https://app-content.cdn.examgoal.net/fly/@width/image/1kxkjue3l/becc7ff2-e872-4c9f-ac41-c397d50ff5a2/3f6dbe00-64ce-11ec-abfa-758f9b3dbab0/file-1kxkjue3m.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1kxkjue3l/becc7ff2-e872-4c9f-ac41-c397d50ff5a2/3f6dbe00-... | mcq | jee-main-2021-online-24th-february-evening-slot | 10,460 |
cZ51oHe87ENJh1Mxef1klt398uy | physics | electronic-devices | digital-circuits | The truth table for the following logic circuit is :<br/><br/><img src="data:image/png;base64,UklGRmILAABXRUJQVlA4IFYLAADwSQCdASrcAYkAPm00lkgkIqIhIrLq+IANiWlu4WjTCmNwrn5R/mH4zeEn9n/KTsIfS/sZuqv653GHwv8f/bD1L/2n85/oHlH7pP3j1AvWf97/k37N+gT9Fu54q7/kv5X7BHuR8u/w38s/sv/G/u/oFf138t/m/tB9XPYC/Vz/F/z32l/w36H+RTQF/MP+F/qX7Zf3D6... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734265269/exam_images/bitebombkyatmlkhn9ip.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2021 (Online) 25th February Evening Shift Physics - Semiconductor Questi... | ["D"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263521/exam_images/h46z2zxlw633jlbkfknw.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 25th February Evening Shift Physics - Semiconductor Question 113 English Explanation">
<br>If A = ... | mcq | jee-main-2021-online-25th-february-evening-slot | 10,461 |
0IQPUcEHHtrDPMRxkn1klukbyq6 | physics | electronic-devices | digital-circuits | Draw the output signal Y in the given combination of gates.<br/><br/><img src="data:image/png;base64,UklGRgQLAABXRUJQVlA4IPgKAABwTACdASr0AYEAPm00mEekIyKhJpMJ6IANiWlu47AX4BbFWTxnZ13/pp/Xe1X+1/lN1tfjf2h8gDW0fef5H/Uf9r8af2H/E/0P9pvO/32ahfqL/F/zb+lf7Xz6f6f+ify/xMM3/qv6tewF2v/zf8y/nPj6/sP8l/cj3H+pnme/6r+ieax/r/535WvhnsDf0H+... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734266836/exam_images/rle5oupu19mddpwibvit.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2021 (Online) 26th February Evening Shift Physics - Semiconductor Questi... | ["A"] | null | Y = $$\overline {\overline A + B} $$ = $$A.\overline B $$
<br><br>A = 0 $$ \Rightarrow $$ Y = 0 for B = 0 or B = 1
<br><br>A = 1 $$ \Rightarrow $$ Y = 0 for B = 1
<br><br>A = 1 $$ \Rightarrow $$ Y = 1 for B = 0
<br><br>Hence output is 1 only when input A = 1 and B = 0.
<br><br>$$ \therefore $$ A is the correct output. | mcq | jee-main-2021-online-26th-february-evening-slot | 10,462 |
4VFas0wAjDFpbGMt8l1kmiolrnz | physics | electronic-devices | digital-circuits | The following logic gate is equivalent to :<br/><br/><img src="data:image/png;base64,UklGRvYHAABXRUJQVlA4IOoHAACQPgCdASrSAZUAPm00l0gkIyIhKbJYEIANiWlu4W5xG/OH8Y/z38R/Bv+v/k51x3pT1r9RZoD+p/y79qf6r9Bv1j/DfkB5n7Sv9J+z/0uf6D9JfBJAB9Ov7n/O/2o8ob9Y/HnmM/7x/M/OH/kHjlRU/5P+H/1D/M/4j3wv6L+Of0P/t/6H3GfJ/+u/gn9P/YD7FP07/0X8j/pPvge... | [{"identifier": "A", "content": "NOR Gate"}, {"identifier": "B", "content": "NAND Gate"}, {"identifier": "C", "content": "OR Gate"}, {"identifier": "D", "content": "AND Gate"}] | ["A"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263988/exam_images/g2zrsdmhieubhjqe5d4f.webp"><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267336/exam_images/h2wmupvpzzcz2dmsuvts.webp"><img src="https://res.c... | mcq | jee-main-2021-online-16th-march-evening-shift | 10,464 |
POLbelq3lA3PN4CQZN1kmj3sbm7 | physics | electronic-devices | digital-circuits | The output of the given combination gates represents :<br/><br/><img src="data:image/png;base64,UklGRk4KAABXRUJQVlA4IEIKAACwQwCdASrxAXkAPm0yl0ikIqIhItDKcIANiWlu/HyYPF9ZMo7Txj/Nvxm8Ev7h0iffj2W9TRnr/Hfxr+qehH96/qX7VeYPvg1AvVP9v/ln7e+gD9QP474ktWf0o9gL19+c/2v+cf2T/kf1L0Af3X8ivJh5nn+H/k/9E/4HNh7APgA/Kv+h/rX9S/4H9399r+c/i/9P... | [{"identifier": "A", "content": "AND Gate"}, {"identifier": "B", "content": "NOR Gate"}, {"identifier": "C", "content": "NAND Gate"}, {"identifier": "D", "content": "XOR Gate"}] | ["C"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263846/exam_images/yglyoyq94s6nl04uwz1f.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 17th March Morning Shift Physics - Semiconductor Question 105 English Explanation"> | mcq | jee-main-2021-online-17th-march-morning-shift | 10,465 |
1krue19mo | physics | electronic-devices | digital-circuits | Identify the logic operation carried out.<br/><br/><img src="data:image/png;base64,UklGRiYLAABXRUJQVlA4IBoLAADwVACdASoUAsQAPm00l0kkIqIhIbDJ4IANiWlu/HyYhUpHZ13fp5/Qu07+6/z/8ZOy48w/oP7JenZW4Xz/57+Vf3f/k+l/+Z/h39m/x/nz7yP5T1C/UX+M/kH9U/3foA/QDuTKn/3L1CO1n+n/kX9g/XDz/v7j+Xf072W+qv+c9wL8vf4d/O/Sb/RjyffEP0r+AD8d/8v+hf2z16f9z... | [{"identifier": "A", "content": "OR"}, {"identifier": "B", "content": "AND"}, {"identifier": "C", "content": "NOR"}, {"identifier": "D", "content": "NAND"}] | ["B"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267741/exam_images/rx50h6u5acaffo3bhb5a.webp"><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265024/exam_images/bxhvvxevgxi36nfwpc8q.webp"><img src="https://res.c... | mcq | jee-main-2021-online-25th-july-morning-shift | 10,467 |
1ks18aw42 | physics | electronic-devices | digital-circuits | Find the truth table for the function Y of A and B represented in the following figure.<br/><br/><img src="data:image/png;base64,UklGRgwJAABXRUJQVlA4IAAJAAAQRQCdASr6AZgAPm00lUekIyIhKjN4SIANiWlu4WxOM2tiB4T2Pg/+l/jr4G/1voF/Hvs16TdZdfN/hf4r/SfPj++fxP+d+UO1P/cP4l/S/9V58v0W/o3h25F/zn8K/mP7CfKF6d/XPR75cvRS/338l/ono3/ox5SUZH+... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734266273/exam_images/k91iuxgymamjcip0tp9x.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2021 (Online) 27th July Evening Shift Physics - Semiconductor Question 9... | ["B"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263639/exam_images/clh2xj8qauxvozlpkjhz.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 27th July Evening Shift Physics - Semiconductor Question 92 English Explanation 1"><br>Y = A . B +... | mcq | jee-main-2021-online-27th-july-evening-shift | 10,468 |
1ktabxh9e | physics | electronic-devices | digital-circuits | Identify the logic operation carried out by the given circuit :-<br/><br/><img src="data:image/png;base64,UklGRsAHAABXRUJQVlA4ILQHAACQOwCdASqcAXgAPm00mEekIyKhJNOqyIANiWlu3pfpnjbc+J/4v+Qngz/hfyU63nxd7JemF+19Gp/AduZ7V/Hf3I9VP8H4K8AL0v/eP5JwR4AvqD/lv5F/SP1c+OP1P/T/yL9QPIj5jv+U/jnmtfoB5Xnc3sAflP/GfyL8h/gN/0P4f/Qv2v94Xy5/vf... | [{"identifier": "A", "content": "OR"}, {"identifier": "B", "content": "AND"}, {"identifier": "C", "content": "NOR"}, {"identifier": "D", "content": "NAND"}] | ["C"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266089/exam_images/lkqo9oe4m68euobbmmtk.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 26th August Morning Shift Physics - Semiconductor Question 90 English Explanation"> | mcq | jee-main-2021-online-26th-august-morning-shift | 10,469 |
1kth0v03a | physics | electronic-devices | digital-circuits | In the following logic circuit the sequence of the inputs A, B are (0, 0), (0, 1), (1, 0) and (1, 1). The output Y for this sequence will be :<br/><br/><img src="data:image/png;base64,UklGRiwKAABXRUJQVlA4ICAKAAAQUQCdASrwAd0APm02mUgkIyKhIzR5uIANiWlu4XHOTRnZ11fpR/SO1P/B/1DpuPGnsd+7Hues3/27+O/2X/h+nX98/l38M/1XnL7wvg/2CPU3... | [{"identifier": "A", "content": "1, 0, 1, 0"}, {"identifier": "B", "content": "0, 1, 0, 1"}, {"identifier": "C", "content": "1, 1, 1, 0"}, {"identifier": "D", "content": "0, 0, 1, 1"}] | ["C"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264906/exam_images/qbroxgnu95julvlxvx9b.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 31st August Morning Shift Physics - Semiconductor Question 83 English Explanation"><br>$$Y = \over... | mcq | jee-main-2021-online-31st-august-morning-shift | 10,471 |
1ktjo1m3f | physics | electronic-devices | digital-circuits | If V<sub>A</sub> and V<sub>B</sub> are the input voltages (either 5V or 0V) and V<sub>0</sub> is the output voltage then the two gates represented in the following circuit (A) and (B) are :-<br/><br/><picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265248/exam_i... | [{"identifier": "A", "content": "AND and OR Gate"}, {"identifier": "B", "content": "OR and NOT Gate"}, {"identifier": "C", "content": "NAND and NOR Gate"}, {"identifier": "D", "content": "AND and NOT Gate"}] | ["B"] | null | V<sub>A</sub> = 5V $$\Rightarrow$$ A = 1<br><br>V<sub>A</sub> = 0V $$\Rightarrow$$ A = 0<br><br>V<sub>B</sub> = 5V $$\Rightarrow$$ B = 1<br><br>V<sub>B</sub> = 0V $$\Rightarrow$$ B = 0<br><br>If A = B = 0, there is no potential anywhere here V<sub>0</sub> = 0<br><br>If A = 1, B = 0, Diode D<sub>1</sub> is forward biase... | mcq | jee-main-2021-online-31st-august-evening-shift | 10,472 |
1l57qilra | physics | electronic-devices | digital-circuits | <p>Identify the correct Logic Gate for the following output (Y) of two inputs A and B.</p>
<p> <img src="data:image/png;base64,UklGRggUAABXRUJQVlA4IPwTAABQBQGdASoAAzoCP4G21mU2LTgpI1AZ0wAwCWlu4WgiQmNwvV5q/yXcP/nvz+yxcCv8n///3/99nbDwBf4b7//egfXa+egj578PPH/0Ha0f//+qH97//4vEsWsqCR1d1z0AIdrzk4J8MTf4cgnUDjuJBkWQBqhlSgW/ROryQ... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l58kzzni/d9b32b2a-e565-41f1-a5cc-b514e3ead788/177de5e0-fc9b-11ec-af50-7b1dc1e93a30/file-1l58kzznj.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l58kzzni/d9b32b2a-e565-41f1-a5cc-b514e3ead788/177... | ["B"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l5jqcj4s/21e025d7-970c-472a-943a-79a41d2cbfac/a109e1c0-02bc-11ed-95db-c3fa9a0f41ba/file-1l5jqcj4t.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l5jqcj4s/21e025d7-970c-472a-943a-79a41d2cbfac/a109e1c0-02bc-11ed-95db-c3fa9a0f41ba... | mcq | jee-main-2022-online-27th-june-morning-shift | 10,473 |
1l6dznm9w | physics | electronic-devices | digital-circuits | <p>In the circuit, the logical value of $$A=1$$ or $$B=1$$ when potential at $$A$$ or $$B$$ is $$5 \mathrm{~V}$$ and the logical value of $$A=0$$ or $$B=0$$ when potential at $$A$$ or $$B$$ is $$0 \mathrm{~V}$$.</p>
<p><img src="data:image/png;base64,UklGRmALAABXRUJQVlA4IFQLAAAQyACdASoAA1sCP4HA22W2MK2nIVGJGsAwCWlu4XHES... | [{"identifier": "A", "content": "$$\\matrix{\n A & B & Y \\cr \n 0 & 0 & 0 \\cr \n 1 & 0 & 0 \\cr \n 0 & 1 & 0 \\cr \n 1 & 1 & 1 \\cr \n\n } $$"}, {"identifier": "B", "content": "$$\\matrix{\n A & B & Y \\cr \n 0 & 0 & 0 \\cr \n 1 & 0 & 1 \\cr \n 0 & 1 & 1 \\cr \n 1 & 1 & 1 \\cr \n\n } $$"... | ["A"] | null | <p>Given circuit is equivalent to an AND gate.</p>
<p>$$\therefore$$ $$\matrix{
A & B & Y \cr
0 & 0 & 0 \cr
0 & 1 & 0 \cr
1 & 0 & 0 \cr
1 & 1 & 1 \cr
} $$</p> | mcq | jee-main-2022-online-25th-july-morning-shift | 10,475 |
1l6jimiv8 | physics | electronic-devices | digital-circuits | <p>A logic gate circuit has two inputs A and B and output Y. The voltage waveforms of A, B and Y are shown below.</p>
<p><img src="data:image/png;base64,UklGRmYGAABXRUJQVlA4IFoGAACQgQCdASoAA6kBP4HA2mU2MTqnIDZqC1AwCWlu8nw91sdiN+fz6M/yNAU7hf8ldpGaftwRCDznNWThx2UqOWBt7ZfSShI9mFQSlwVeVukky9svpJQoLzdL3kejzJB5+xOEwRD0Vv6Q5EX... | [{"identifier": "A", "content": "AND gate"}, {"identifier": "B", "content": "OR gate"}, {"identifier": "C", "content": "NOR gate"}, {"identifier": "D", "content": "NAND gate"}] | ["A"] | null | <p>From waveforms, it is an AND gate.</p> | mcq | jee-main-2022-online-27th-july-morning-shift | 10,476 |
ldqvucvk | physics | electronic-devices | digital-circuits | <p>The output $Y$ for the inputs $A$ and $B$ of circuit is given by</p>
<p><img src="data:image/png;base64,UklGRnwJAABXRUJQVlA4IHAJAAAQfACdASoAA/0AP4G+12S2L7inIhFqexAwCWlu4W8CQmNwunh33d7a5nEOTulv//1dIpggsaBvycuNq7xVwY0JP1OJTRJbD22RL5kkI+AgsaBvycuNq8wFuymrdK5jKElebofbfKZPtvlLHSWzt2v5APATwxhzqWMe/R8BBY0Dfk3msCYMRdxNxeG9t... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1ldqzud12/349960f0-87fa-4023-963f-57e1206fc7c4/faa0c160-a51c-11ed-8305-97c1292784a6/file-1ldqzud13.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1ldqzud12/349960f0-87fa-4023-963f-57e1206fc7c4/faa... | ["A"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1leoho6h8/1416d239-a3d2-499b-888d-937d610b06d1/9077a9b0-b788-11ed-8877-d5d81ac5ff88/file-1leoho6h9.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1leoho6h8/1416d239-a3d2-499b-888d-937d610b06d1/9077a9b0-b788-11ed-8877-d5d81ac5ff88... | mcq | jee-main-2023-online-30th-january-evening-shift | 10,477 |
1ldsb32ad | physics | electronic-devices | digital-circuits | <p>For the given logic gates combination, the correct truth table will be</p>
<p><img src="data:image/png;base64,UklGRgoJAABXRUJQVlA4IP4IAAAQcwCdASoAAxABP4G01WY2LCupoZB52sAwCWlu4WxCkmNwu55ps/f0e5f7OZoVvv005N72d//xGCZpIUmw96lvWDYhbfu839w7LQtlVloWyqy0LZVZZFXiDOzlS47eIoE5ooh96j5kUKl2bnm/uHZaFsqstC2VWWT1pE7Ce6MGH4Ik/xP2l6z... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1ldsnsylx/934e5e50-4199-4e12-b6e0-ddb1b8dcbbac/776dcd60-a607-11ed-a0ed-57f9f4967d00/file-1ldsnsyly.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1ldsnsylx/934e5e50-4199-4e12-b6e0-ddb1b8dcbbac/776... | ["D"] | null | <p>As per the circuit,</p>
<p>$$X=A'B+AB'$$</p>
<p>If : $$A=0,B=0\Rightarrow X=0$$</p>
<p>$$A=0,B=1\Rightarrow X=1$$</p>
<p>$$A=1,B=0\Rightarrow X=1$$</p>
<p>$$A=1,B=1\Rightarrow X=0$$</p> | mcq | jee-main-2023-online-29th-january-evening-shift | 10,479 |
1ldwqiexi | physics | electronic-devices | digital-circuits | <p><img src="data:image/png;base64,UklGRrgJAABXRUJQVlA4IKwJAACwwwCdASqxAgADP4HA3WY2MS4nILa4wsAwCWlu4XETRmNwv8dx3dQL/ajMOByw3/ADs2Ds2Ds2Ds2Ds2Ds2Ds2Ds1ccc/yoaYOOf+cQLOW0XqZY+QuqMWqMWqMWqMWp6NMHHP8qGmDjmpHWynjHHmRf/nHBsNlB6RkBBxDPz9MHHP8qGmDjn/opg45/lQ0wcc/l/fhegGbgA1hvheDm8emyrYeuf5UNMHHP8qiDxz/Khpg45/lNB+Lzg45/lQ0wcc/y... | [{"identifier": "A", "content": "NOR"}, {"identifier": "B", "content": "OR"}, {"identifier": "C", "content": "NAND"}, {"identifier": "D", "content": "AND"}] | ["C"] | null | <p>The truth table for the circuit will be given as below</p>
<style type="text/css">
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.tg th{bor... | mcq | jee-main-2023-online-24th-january-evening-shift | 10,480 |
1lgq2qd19 | physics | electronic-devices | digital-circuits | <p>For the following circuit and given inputs A and B, choose the correct option for output '$$Y$$'</p>
<p><img src="data:image/png;base64,UklGRrAQAABXRUJQVlA4IKQQAAAQbgCdASoAA6YAPm0yl0ikIqKhI1E6yIANiWlu/CoYLlEHZ15fq//je2P/K9Jt6glfHD/y/7Yfr/717XP6Lv14Avr7dvdm8wL2S+yf87v+/7j0V+vX/A9wDvyvCLoD/yX+4/+j1M//H/Sejn6v/av4Ef57/... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1lgqypjb9/60b04dc2-bc33-44a3-9cdb-64c37301ea83/31718350-e07d-11ed-baf9-87204e3a7c88/file-1lgqypjba.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1lgqypjb9/60b04dc2-bc33-44a3-9cdb-64c37301ea83/317... | ["D"] | null | $$
\begin{aligned}
& Y=\left(A^{\prime} \cdot B\right)^{\prime} \\\\
& =A+B^{\prime} \\\\
& \Rightarrow \text { Option } D .
\end{aligned}
$$ | mcq | jee-main-2023-online-13th-april-morning-shift | 10,482 |
1lgsww5ny | physics | electronic-devices | digital-circuits | <p>The logic operations performed by the given digital circuit is equivalent to:</p>
<p><img src="data:image/png;base64,UklGRsIHAABXRUJQVlA4ILYHAACwbgCdASoAAygBP4HA1WY2L6unIDQKAsAwCWlu4XJyzmNwu55yxiG/P9LuYu1WWVDt7f0pBF+Mfs4r2L8ppiYks1V0H3jpzJQTHIFLHIi4UqL8Y/Zxv0RFwokNRJE8GdsB4nx7fDrcfgaY657v/kFOyLhSovxj9nG/REXChY2mj5tn... | [{"identifier": "A", "content": "NOR"}, {"identifier": "B", "content": "AND"}, {"identifier": "C", "content": "NAND"}, {"identifier": "D", "content": "OR"}] | ["B"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lib76axm/10785b44-0f53-4b38-a504-1712bd7ec2f8/3120e8d0-ff6a-11ed-be52-3d539499df54/file-1lib76axq.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lib76axm/10785b44-0f53-4b38-a504-1712bd7ec2f8/3120e8d0-ff6a-11ed-be52-3d539499df54/fi... | mcq | jee-main-2023-online-11th-april-evening-shift | 10,483 |
1lguxr5uu | physics | electronic-devices | digital-circuits | <p>The logic performed by the circuit shown in figure is equivalent to :</p>
<p><img src="data:image/png;base64,UklGRnAGAABXRUJQVlA4IGQGAAAQWgCdASoAA+4AP4G+2mU2L60nIbDZmsAwCWlu4WxDbmNwvV6Ps4bNztRlzA4+K//LCAfBkvGlcg1YFJ24affLaQmf1flci/K5F+VyL8rkX5XITa7XZkIc7ZxHlfjatkD1WoDudLoEKbMNOvB1hQZfL5fL5fL5fL5fL5fL5fucHO10KzjLTlKL... | [{"identifier": "A", "content": "NAND"}, {"identifier": "B", "content": "AND"}, {"identifier": "C", "content": "OR"}, {"identifier": "D", "content": "NOR"}] | ["B"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1libatw7l/19597932-40fb-4f1c-b21e-d35139a53d2e/7c8f7c10-ff78-11ed-84fc-bb23324267e4/file-1libatw7m.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1libatw7l/19597932-40fb-4f1c-b21e-d35139a53d2e/7c8f7c10-ff78-11ed-84fc-bb23324267e4/fi... | mcq | jee-main-2023-online-11th-april-morning-shift | 10,484 |
1lh029g6s | physics | electronic-devices | digital-circuits | <p>For the logic circuit shown, the output waveform at $$\mathrm{Y}$$ is:</p>
<p><img src="data:image/png;base64,UklGRnYHAABXRUJQVlA4IGoHAADwaACdASoAA/EAP4HA3GO2MTumoxMZe3AwCWlu4Is4fQPCft9C2jsc6+E8LbcjhftvoZS40Zpnkaq/sg8loVMM1lSDyWhUwzWVIPJaFF9wq0ZgNe1kzZs2amyyTFcvr3GHsozCLfXuMPZRmEW+v8b4ytvr2KgmQ+YUGIt9e4w9lGYQmtOeTKA... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1lh1hjc3c/d051a1ed-53f2-43df-b8d4-b4fd9c5fb3cb/a8f59780-e646-11ed-9b1f-cf98cc51cb3d/file-1lh1hjc3d.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1lh1hjc3c/d051a1ed-53f2-43df-b8d4-b4fd9c5fb3cb/a8f... | ["B"] | null | $$
\begin{aligned}
&\text {For the given circuit the truth table would be : }\\\\
&\begin{array}{|c|c|c|}
\hline \mathbf{A} & \mathbf{B} & \mathbf{Y} \\
\hline 0 & 0 & 0 \\
\hline 0 & 1 & 1 \\
\hline 1 & 0 & 1 \\
\hline 1 & 1 & 1 \\
\hline
\end{array}
\end{aligned}
$$<br>... | mcq | jee-main-2023-online-8th-april-morning-shift | 10,485 |
1lh249ef1 | physics | electronic-devices | digital-circuits | <p>Name the logic gate equivalent to the diagram attached</p>
<p><img src="data:image/png;base64,UklGRo4MAABXRUJQVlA4IIIMAADw2QCdASoAA54CP4HA22Y2MK2nINJI+sAwCWlu8o+XpMq98DRkp9ei+99q8RXrtr3Z9/E3/6G5kl//+oQdbMhGOcc45xaCMATVgTBoWvX0gr2F/hruq0Bgkolw5YCinx3CkCQEgJASAkBICM65NcmuTXJrk1oFSHlXXyVtdlIMvXuPk4RYbgUmsPFTxgAgkWLiq9h... | [{"identifier": "A", "content": "NOR"}, {"identifier": "B", "content": "NAND"}, {"identifier": "C", "content": "AND"}, {"identifier": "D", "content": "OR"}] | ["A"] | null | If we consider the given logic circuit, then we get the following output.
<br/><br/>$$
\begin{array}{lll}
\hline A & B & Y \\
\hline 0 & 0 & 1 \\
\hline 1 & 0 & 0 \\
\hline 0 & 1 & 0 \\
\hline 1 & 1 & 0 \\
\hline
\end{array}
$$
<br/><br/>Output $Y$ shows the output of NOR Gate.
<br/><br/>Hence, option (a) correct. | mcq | jee-main-2023-online-6th-april-morning-shift | 10,486 |
jaoe38c1lscpnh06 | physics | electronic-devices | digital-circuits | <p>The truth table of the given circuit diagram is :</p>
<p><img src="data:image/png;base64,UklGRtQGAABXRUJQVlA4IMgGAACQYACdASoAA90AP4G+12S2MCwnIXEqSsAwCWlu+F+98d4ErCN+e36LtA7OrtPlsw8WHkSkxba1ekr1hMzMzMzLjnNu9e/icBdDHEOzu7u7u7u7u7u6ECHPsd0eq00TwHMrF5W9YzX9MzK1P7DC5OjKp0UaFakkW7a4g88NGvisoZgzWkQjloPOeUck7u7u8MlyO0T8kmd+... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lsd287b8/cbf09c5f-9ea0-43cf-85e9-f8e750b12752/9363ac40-c66a-11ee-9e75-ed145f26bf63/file-6y3zli1lsd287b9.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/6y3zli1lsd287b8/cbf09c5f-9ea0-43cf-85e... | ["A"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lt1ijy0x/7346896e-e887-474e-b075-7409e93b447f/3b93f710-d3dd-11ee-b732-196aad4e0551/file-1lt1ijy0y.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lt1ijy0x/7346896e-e887-474e-b075-7409e93b447f/3b93f710-d3dd-11ee-b732-196aad4e0551... | mcq | jee-main-2024-online-27th-january-evening-shift | 10,487 |
jaoe38c1lsd84k4m | physics | electronic-devices | digital-circuits | <p><img src="data:image/png;base64,UklGRiYJAABXRUJQVlA4IBoJAADwgACdASoAAzwBP4G41mW2LSwnIfBJssAwCWlu4WmESmNwvV6ItBfzW5q7YZkQOQPfbvk1jl8x5U4ZgqqrZjZBf3ouJZfk1llRbHIqLY5FRbHIqLY4+Lf529xb0ZCYQpvNl4VU5xjzTa+rwjf2QAb+yADf2QAb+yADfqhj/+HXUN2RkOpoLoOupc9WrSHlBQCwvisfSgPgIuGqgjAHPXuMNVBGAOevcYarRdGRpNMYDA9TmB6Ke4Lz6g13fUIKUoNb9... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lsdwa2rq/6766ce84-2dde-488d-90ea-7042a8178070/195fb260-c6e0-11ee-878f-6db133fe392f/file-6y3zli1lsdwa2rr.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/6y3zli1lsdwa2rq/6766ce84-2dde-488d-90e... | ["D"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lsiikatj/7edefe17-bd48-4436-99e7-e57520d14984/611f6d70-c96a-11ee-b416-eff853096672/file-6y3zli1lsiikatk.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lsiikatj/7edefe17-bd48-4436-99e7-e57520d14984/611f6d70-c96a-11ee... | mcq | jee-main-2024-online-31st-january-evening-shift | 10,488 |
jaoe38c1lse6okbg | physics | electronic-devices | digital-circuits | <p>Identify the logic operation performed by the given circuit.</p>
<p><img src="data:image/png;base64,UklGRi4KAABXRUJQVlA4ICIKAAAQVACdASoAA8cAPm02mUikIyKhIhTpkIANiWlu+FB0/JDZEuuqN36w/07tv/0nR7+0PafkxRJuv/9V65f6Dvr+LGoR6z/xW87gA/Pv6h53cxpWLkA9ELPW9Y8CgTuEgJGDo6vyLWEJETE6SqN5xt9in5y33e/WuHg2b6eUsR/md4ih5i510Dptc3jqsSInY... | [{"identifier": "A", "content": "AND"}, {"identifier": "B", "content": "NOR"}, {"identifier": "C", "content": "OR"}, {"identifier": "D", "content": "NAND"}] | ["C"] | null | <p>$$\mathrm{Y}=\overline{\overline{\mathrm{A}} \cdot \overline{\mathrm{B}}}=\overline{\overline{\mathrm{A}}}+\overline{\overline{\mathrm{B}}}=\mathrm{A}+\mathrm{B}$$</p>
<p>(De-Morgan's law)</p> | mcq | jee-main-2024-online-31st-january-morning-shift | 10,489 |
jaoe38c1lsflnps5 | physics | electronic-devices | digital-circuits | <p>The truth table for this given circuit is :</p>
<p><img src="data:image/png;base64,UklGRvIHAABXRUJQVlA4IOYHAABQhACdASoAA2wBP4HA3WS2Ma4nIfZ5YsAwCWlu4W8D0mNwvj6HxgPCmzx7nZxsQRum/JuWFxfA/4ZyUXZ9QPg2y8/8Lk1qLs+oHwbZef+FA4GcRI62N1kUXUS+DbLz/wozNvhRDsh/kIaLvg2y8/8Lk1qLs+oHwPc4jLMmtLsBPXoZQvXrIuhkN7NFkyZMmSwSmuMRZIKhNrCdxs... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lsg9mo0u/da195833-96f9-45b0-b43d-77209b08fd69/df7a93e0-c82d-11ee-8c6b-bfa4f1fff66a/file-6y3zli1lsg9mo0v.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/6y3zli1lsg9mo0u/da195833-96f9-45b0-b43... | ["B"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lsr7szfm/c0218e5b-64d4-45dd-a40b-226646ed04a3/5c088420-ce33-11ee-9412-cd4f9c6f2c40/file-6y3zli1lsr7szfn.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lsr7szfm/c0218e5b-64d4-45dd-a40b-226646ed04a3/5c088420-ce33-11ee... | mcq | jee-main-2024-online-29th-january-evening-shift | 10,490 |
luxwervs | physics | electronic-devices | digital-circuits | <p><img src="data:image/png;base64,UklGRowIAABXRUJQVlA4IIAIAADQeQCdASoAAycBP4G+2WS2MCynIfHZ2sAwCWlu8l3dnLVDzxt6/RFpDZzdqsyS3/5zhf6Y0+vyNLM3Cc8XcZseGJdLuIFLtlnZJjD27l6S7ZZ2SYw9u5WZTzxD1jW6mX0YHuifl7qbPFvCAqg0Hb+9ZjQgDQ4jDNmLeRZIBvEFBs3S1SKwKCD8vSXbLOyTGHlmUon7doQ+5KsASwqgTmKD0Yq0cc+1sOEBKdssrhjLxwkHFartL3n/M4FUB7dy9JcYr... | [{"identifier": "A", "content": "1, 1"}, {"identifier": "B", "content": "0, 1"}, {"identifier": "C", "content": "1, 0"}, {"identifier": "D", "content": "0, 0"}] | ["A"] | null | <p>$$\begin{aligned}
& Y=\overline{A B+\overline{A B}} \\
& \text { for } A=0, B=1, Y=1 \\
& \text { for } A=1, B=0, Y=1
\end{aligned}$$</p> | mcq | jee-main-2024-online-9th-april-evening-shift | 10,491 |
lv5gt52j | physics | electronic-devices | digital-circuits | <p>The output $$\mathrm{Y}$$ of following circuit for given inputs is :</p>
<p><img src="data:image/png;base64,UklGRvoGAABXRUJQVlA4IO4GAACwawCdASoAAxUBP4HA3GQ2MS4molRpisAwCWlu4WuSamNwvH51tNbO/uBmbSn86Dq18v3p6MtlJzAz1MNmS6kzovtVr5fvnY/fOx++dHkziLvXycvoBz5hRMchGeXYpZg54D1v8hd6+Tl7LM4i718nL2WZxBDXfIZY03liUw/K3z1j7Tw/AwEqh... | [{"identifier": "A", "content": "$$A \\cdot B$$\n"}, {"identifier": "B", "content": "$$\\bar{A} \\cdot B$$\n"}, {"identifier": "C", "content": "$$\\Lambda \\cdot B(\\Lambda+B)$$"}, {"identifier": "D", "content": "0"}] | ["D"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lw904k8n/f6f067f0-c7b4-4a19-860e-0604f9e4607e/16ccbf80-1360-11ef-a2b1-a5535752b4da/file-1lw904k8o.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lw904k8n/f6f067f0-c7b4-4a19-860e-0604f9e4607e/16ccbf80-1360-11ef-a2b1-a5535752b4da... | mcq | jee-main-2024-online-8th-april-morning-shift | 10,493 |
lv7v4r9k | physics | electronic-devices | digital-circuits | <p>Following gates section is connected in a complete suitable circuit.</p>
<p><img src="data:image/png;base64,UklGRlYKAABXRUJQVlA4IEoKAACQewCdASoAAwkBP4G21GU2LSunIdFqasAwCWlu4W2jlmNwur5/tA7PHtN/e+MygO+Dqfgsw1057k5hRB5vcD/IUzMzMzMzMzMzMzMzMzMzMzMzMymEowC8rnRrV+c80FyCFhZIwUNqNsEnrp0J9Om5CmZmZmZmUJNhTmJrOS9wcS61OTZ2sAJEU... | [{"identifier": "A", "content": "$$\\mathrm{A}=1, \\mathrm{~B}=1, \\mathrm{C}=1, \\mathrm{D}=0$$\n"}, {"identifier": "B", "content": "$$\\mathrm{A}=1, \\mathrm{~B}=0, \\mathrm{C}=0, \\mathrm{D}=0$$\n"}, {"identifier": "C", "content": "$$\\mathrm{A}=0, \\mathrm{~B}=0, \\mathrm{C}=0, \\mathrm{D}=1$$\n"}, {"identifier": "... | ["B"] | null | <p>For bulb to glow, there should be low-high combination across the bulb.</p>
<p>If $$A=1, B=0, C=0$$ & $$D=0$$
<p>$$\overline{\overline{1}+1}=0 \quad \& \quad \overline{0}=1$$</p>
<p>So, bulb will glow.</p> | mcq | jee-main-2024-online-5th-april-morning-shift | 10,494 |
lv9s2sx3 | physics | electronic-devices | digital-circuits | <p>The output (Y) of logic circuit given below is 0 only when :</p>
<p><img src="data:image/png;base64,UklGRhAGAABXRUJQVlA4IAQGAADQXQCdASoAA/sAP4HA3WO2Ma6molPZusAwCWlu+EZn/0bH0O/Hz0pGMHf0+Ug/I5oK9GJIe3QEW5gHengmr52J+Tne623me/csqJIYe3QEW5gHgItsPvVdqE79aepl0flJTHoEaotAJrWQAZw7UJ3609UAHeRdqE79aZG7UrBreXubTNirmkUk4ufJ+BTeC... | [{"identifier": "A", "content": "$$\\mathrm{A}=0, \\mathrm{~B}=0$$\n"}, {"identifier": "B", "content": "$$\\mathrm{A}=0, \\mathrm{~B}=1$$\n"}, {"identifier": "C", "content": "$$\\mathrm{A}=1, \\mathrm{~B}=0$$\n"}, {"identifier": "D", "content": "$$\\mathrm{A=1, B=1}$$"}] | ["A"] | null | <p>$$\begin{aligned}
Y & =(A+B)+(B \cdot 1) \\
& =A+B+B \\
& =A+B
\end{aligned}$$</p> | mcq | jee-main-2024-online-5th-april-evening-shift | 10,495 |
lvc58elr | physics | electronic-devices | digital-circuits | <p>The correct truth table for the following logic circuit is :</p>
<p><img src="data:image/png;base64,UklGRhINAABXRUJQVlA4IAYNAABQWwCdASoAA7QAPm02l0ikIqKhIZJKGIANiWlu+F8TuJAQsFg28yqry1/kO3n/S9Hv6s9tOTjuX9Ev5b92vOPty/me+P5QagX5F/Nf8nvXoAP0L+q+g1NByAOCS9G9gbxM8/T1l7CvSdGEw1MOyo5HHf4wFaDCMD1YHZedC556IXIQMhPqfByOQgZCfU+Dk... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1lvbwjz76/5bb3ab19-932a-4cf3-b0cb-e8fbedbca72f/418b6d20-012c-11ef-bd95-41d7775c8dbd/file-1lvbwjz77.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1lvbwjz76/5bb3ab19-932a-4cf3-b0cb-e8fbedbca72f/418... | ["B"] | null | NOT, OR and AND gate.</p>
<p><style type="text/css">
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overflow:hidden;padding:10px 5px;word-break:normal;}
.tg th{border-color:black;border-style:solid;border-wi... | mcq | jee-main-2024-online-6th-april-morning-shift | 10,496 |
CwzupXnlzhxjZIQe | physics | electronic-devices | semiconductor-and-p-n-junction-diode | By increasing the temperature, the specific resistance of a conductor and a semiconductor | [{"identifier": "A", "content": "increases for both "}, {"identifier": "B", "content": "decreases for both "}, {"identifier": "C", "content": "increases, decreases "}, {"identifier": "D", "content": "decreases, increases "}] | ["C"] | null | Specific resistance is resistivity which is given by
<br><br>$$\rho = {m \over {m{e^2}\,\tau }}$$
<br><br>where $$n=no.$$ of free electrons per unit volume and $$\tau $$ $$=$$ average relaxation time
<br><br><b>For a conductor</b> with rise in temperature $$n$$ increases and $$\tau $$ decreases. But decrease in $$\ta... | mcq | aieee-2002 | 10,498 |
mujjQqukBDM6jkKE | physics | electronic-devices | semiconductor-and-p-n-junction-diode | The energy band gap is maximum in | [{"identifier": "A", "content": "metals "}, {"identifier": "B", "content": "superconductors "}, {"identifier": "C", "content": "insulator "}, {"identifier": "D", "content": "semiconductor "}] | ["C"] | null | The energy band gap is maximum in insulators. | mcq | aieee-2002 | 10,499 |
gL9KCiEII2AT3bmM | physics | electronic-devices | semiconductor-and-p-n-junction-diode | A strip of copper and another of germanium are cooled from room temperature to $$80K.$$ The resistance of | [{"identifier": "A", "content": "each of these decreases "}, {"identifier": "B", "content": "copper strip increases and that of germanium decreases "}, {"identifier": "C", "content": "copper strip decreases and that of germanium increases "}, {"identifier": "D", "content": "each of these increases "}] | ["C"] | null | The resistance of metal (like $$Cu$$) decreases with decrease in temperature whereas the resistance of a semi-conductor (like $$Ge$$) increases with decrease in temperature. | mcq | aieee-2003 | 10,500 |
SaKNBNutig9WrHj1 | physics | electronic-devices | semiconductor-and-p-n-junction-diode | The difference in the variation of resistance with temperature in a metal and a semiconductor arises essentially due to the difference in the | [{"identifier": "A", "content": "crystal structure "}, {"identifier": "B", "content": "variation of the number of charge carries with temperature "}, {"identifier": "C", "content": "type of bonding "}, {"identifier": "D", "content": "variation of scattering mechanism with temperature "}] | ["B"] | null | When the temperature increases, certain bounded electrons become free which tend to promote conductivity. Simultaneously number of collisions between electrons and positive kernels increases | mcq | aieee-2003 | 10,501 |
OVn1bK0PsFzGZVzY | physics | electronic-devices | semiconductor-and-p-n-junction-diode | In the middle of the depletion layer of a reverse- biased $$p$$-$$n$$ junction, the | [{"identifier": "A", "content": "electric field is zero "}, {"identifier": "B", "content": "potential is maximum "}, {"identifier": "C", "content": "electric field is maximum "}, {"identifier": "D", "content": "potential is zero "}] | ["A"] | null | As in reverse bias, the current through the $$0000$$ is zero through the electric field is also zero. | mcq | aieee-2003 | 10,502 |
U6tsWDrJ7NVU2Xkl | physics | electronic-devices | semiconductor-and-p-n-junction-diode | The manifestation of band structure in solids is due to | [{"identifier": "A", "content": "Bohr's correspondence principle "}, {"identifier": "B", "content": "Pauli's exclusion principle "}, {"identifier": "C", "content": "Heisenberg's uncertainty principle "}, {"identifier": "D", "content": "Boltzmann's law"}] | ["B"] | null | Pauli's exclusion principle. | mcq | aieee-2004 | 10,504 |
faDTBUTygXo4dUD2 | physics | electronic-devices | semiconductor-and-p-n-junction-diode | When $$p$$-$$n$$ junction diode is forward biased then | [{"identifier": "A", "content": "both the depletion region and barrier height are reduced "}, {"identifier": "B", "content": "the depletion region is widened and barrier height is reduced "}, {"identifier": "C", "content": "the depletion region is reduced and barrier height is increased "}, {"identifier": "D", "content... | ["A"] | null | Both the depletion region and barrier height is reduced. | mcq | aieee-2004 | 10,505 |
beX7J8ryENkdcOln | physics | electronic-devices | semiconductor-and-p-n-junction-diode | The electrical conductivity of a semiconductor increases when electromagnetic radiation of wavelength shorter than $$2480$$ $$nm$$ is incident on it. The band gap in $$(eV)$$ for the semiconductor is | [{"identifier": "A", "content": "$$2.5$$ $$eV$$ "}, {"identifier": "B", "content": "$$1.1$$ $$eV$$ "}, {"identifier": "C", "content": "$$0.7$$ $$eV$$ "}, {"identifier": "D", "content": "$$0.5$$ $$eV$$ "}] | ["D"] | null | Band gap $$=$$ energy of photon of wavelength $$2480$$ $$nm.$$ So,
<br><br>$$\Delta E = {{hc} \over \lambda }$$
<br><br>$$ = \left( {{{6.63 \times {{10}^{ - 34}} \times 3 \times {{10}^8}} \over {2480 \times {{10}^{ - 9}}}}} \right) \times {1 \over {1.6 \times {{10}^{ - 19}}}}eV$$
<br><br>$$ = 0.5\,eV$$ | mcq | aieee-2005 | 10,506 |
C3FYWZMsAxsD6Oos | physics | electronic-devices | semiconductor-and-p-n-junction-diode | In a full wave rectifier circuit operating from $$50$$ $$Hz$$ mains frequency, the fundamental frequency in the ripple would be | [{"identifier": "A", "content": "$$25$$ $$Hz$$ "}, {"identifier": "B", "content": "$$50$$ $$Hz$$ "}, {"identifier": "C", "content": "$$70.7$$ $$Hz$$ "}, {"identifier": "D", "content": "$$100$$ $$Hz$$"}] | ["D"] | null | Input frequency, $$f = 50\,Hz \Rightarrow T = {1 \over {50}}$$
<br><br>For full wave rectifier, $${T_1} = {T \over 2} = {1 \over {100}} \Rightarrow {f_1} = 100\,Hz.$$ | mcq | aieee-2005 | 10,507 |
nIsMUgqqe6G4F8J3 | physics | electronic-devices | semiconductor-and-p-n-junction-diode | If the lattice constant of this semiconductor is decreased, then which of the following is correct?
<img src="data:image/png;base64,UklGRoowAABXRUJQVlA4IH4wAACQywCdASqVAkoBP4HA02I2MismJrD6OsAwCWlu/E/CBp6Rq4PhPw+Q/7n6QO9H9T/ZP8H5H/1/o9e+xcz/F8FP8X+atMH59+9vjnwCMuuu6AD+Vf2n//+IfqEf42oB/oP6j+/vvv/1fFdoBf7n0JP+D9+/NB+Y/+T... | [{"identifier": "A", "content": "All $${E_c},{E_g},{E_v}$$ increase"}, {"identifier": "B", "content": "$${E_c}$$ and $${E_v}$$ increase, but $${E_g}$$ decreases"}, {"identifier": "C", "content": "$${E_c}$$ and $${E_v}$$ decrease, but $${E_g}$$ increases"}, {"identifier": "D", "content": "All $${E_c},{E_g},{E_v}$$ decre... | ["C"] | null | A crystal structure is composed of a unit cell, a set of atoms arranged in a particular way; which is periodically repeated in three dimensions on a lattice. The spacing between unit cells in various directions is called its lattice parameters or constants. Increasing these lattice constants will increase or widen the ... | mcq | aieee-2006 | 10,509 |
DoFsJHjNxcu3G3ph | physics | electronic-devices | semiconductor-and-p-n-junction-diode | In the following, which one of the diodes is reverse biased? | [{"identifier": "A", "content": "<img class=\"question-image\" src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734265326/exam_images/zi57xabjmcordjhncwij.webp\" loading=\"lazy\" alt=\"AIEEE 2006 Physics - Semiconductor Question 181 English Option 1\"> "}, {"identifier": "B", "content": "<img class=\"question-... | ["D"] | null | $$p$$-side connected to low potential and $$n-$$ side is connected to high potential. | mcq | aieee-2006 | 10,510 |
18xp434gifcajIIp | physics | electronic-devices | semiconductor-and-p-n-junction-diode | The circuit has two oppositively connected ideal diodes in parallel. What is the current following in the circuit?
<br/><br/><img src="data:image/png;base64,UklGRt4JAABXRUJQVlA4INIJAADQZACdASpBAj8BP4HA2WW2MCynIZQpasAwCWlu4XExG/Pz8r9TLa971bRXsJlMYAPzPzH5nyqyeV/+fKv+5/+wPwy8bamyK5jO+/ToXQk2xGlUXXJtqcMvG2pwy8bam0z5nug8Yn... | [{"identifier": "A", "content": "$$1.71$$ $$A$$ "}, {"identifier": "B", "content": "$$2.00$$ $$A$$ "}, {"identifier": "C", "content": "$$2.31$$ $$A$$ "}, {"identifier": "D", "content": "$$1.33$$ $$A$$ "}] | ["B"] | null | $${D_2}$$ is forward biased whereas $${D_1}$$ is reversed biased.
<br><br>So effective resistance of the circuit
<br><br>$$R = 4 + 2 = 6\Omega $$
<br><br>$$\therefore$$ $$i = {{12} \over 6} = 2\,A$$ | mcq | aieee-2006 | 10,511 |
Uyg4SJDH1WaEMxG9 | physics | electronic-devices | semiconductor-and-p-n-junction-diode | A solid which is not transparent to visible light and whose conductivity increases with temperature is formed by | [{"identifier": "A", "content": "Ionic bonding "}, {"identifier": "B", "content": "Covalent bonding"}, {"identifier": "C", "content": "Vander Waals bonding "}, {"identifier": "D", "content": "Metallic bonding "}] | ["B"] | null | Van der Waal's bonding is attributed to the attractive forces between molecules of a liquid. The conductivity of semiconductors (covalent bonding) and insulators (ionic bonding) increases with increase in temperature while that of metals (metallic bonding) decreases. | mcq | aieee-2006 | 10,512 |
7ZH7XpyPcDiA0CDv | physics | electronic-devices | semiconductor-and-p-n-junction-diode | Carbon, silicon and germanium have four valence electrons each. At room temperature which one of the following statements is most appropriate ? | [{"identifier": "A", "content": "The number of free electrons for conduction is significant only in $$Si$$ and $$Ge$$ but small in $$C.$$ "}, {"identifier": "B", "content": "The number of free conduction electrons is significant in $$C$$ but small in $$Si$$ and $$Ge.$$ "}, {"identifier": "C", "content": "The number of ... | ["A"] | null | $$Si$$ and $$Ge$$ are semiconductors but $$C$$ is an insulator. Also, the conductivity of $$Si$$ and $$Ge$$ is more than $$C$$ because the valence electrons of $$Si, Ge$$ and $$C$$ lie in third, fourth and second orbit respectively. | mcq | aieee-2007 | 10,513 |
1J0MNKEHUnOxQuVh | physics | electronic-devices | semiconductor-and-p-n-junction-diode | If in a $$p$$-$$n$$ junction diode, a square input signal of $$10$$ $$V$$ is applied as shown
<img src="data:image/png;base64,UklGRnQHAABXRUJQVlA4IGgHAAAwUwCdASoOAkIBP4HA2GY2MKynIJXZUsAwCWlu4W3BG/Pz8c/4vtZ/x35L5YI3X2MynYbXIyVP94v3YGOVxNPlcTT5XE0+VxNPlcPI2LGjc0rR8FxY0bmlaPguLHXAuRwUHcqzOzIDEAcOVG2EU53BoFcIpzuDQK4RTaJoNF... | [{"identifier": "A", "content": "<img class=\"question-image\" src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734263723/exam_images/x1e6zh6ktryrbpzapzhs.webp\" loading=\"lazy\" alt=\"AIEEE 2007 Physics - Semiconductor Question 179 English Option 1\"> "}, {"identifier": "B", "content": "<img class=\"question-... | ["A"] | null | The current will flow through $${R_L}$$ when the diode is forward biased. | mcq | aieee-2007 | 10,514 |
fuqKfdIDQeu5ODt8 | physics | electronic-devices | semiconductor-and-p-n-junction-diode | A $$p$$-$$n$$ junction $$(D)$$ shown in the figure can act as a rectifier. An alternating current source $$(V)$$ is connected in the circuit.
<img src="data:image/png;base64,UklGRjgHAABXRUJQVlA4ICwHAABwXACdASpFAlABP4HA2mW2MD+nIXQJI/AwCWlu5VARQZOpjcL8eQOz7aML27TbsnlGBA2SJ+HsZkwD0n++X/Gf/Pgah8UFBHlBQR5QUEeUFBHlBQR5HaQeuL... | [{"identifier": "A", "content": "<img class=\"question-image\" src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734267585/exam_images/eklq93niwndknhidild0.webp\" loading=\"lazy\" alt=\"AIEEE 2009 Physics - Semiconductor Question 176 English Option 1\"> "}, {"identifier": "B", "content": "<img class=\"question-... | ["B"] | null | We know that a single $$p$$-$$n$$ junction diode connected to an $$a$$-$$c$$ source acts as a half wave rectifier [ Forward biased in one half cycle and reverse biased in the other half cycle ]. | mcq | aieee-2009 | 10,515 |
CYp022BAkRHNXNEX | physics | electronic-devices | semiconductor-and-p-n-junction-diode | The $${\rm I}$$-$$V$$ characteristic of an $$LED$$ is | [{"identifier": "A", "content": "<img class=\"question-image\" src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734265556/exam_images/iquofeulqvtlkujeeoop.webp\" loading=\"lazy\" alt=\"JEE Main 2013 (Offline) Physics - Semiconductor Question 173 English Option 1\"> "}, {"identifier": "B", "content": "<img clas... | ["A"] | null | For same value of current higher value of voltage is required for higher frequency hence $$(1)$$ is correct answer. | mcq | jee-main-2013-offline | 10,516 |
cBnPK2H3eTAvPlhE | physics | electronic-devices | semiconductor-and-p-n-junction-diode | The current voltage relation of diode is given by $${\rm I} = \left( {{e^{100V/T}} - 1} \right)mA,$$ where the applied voltage $$V$$ is in volts and the temperature $$T$$ is in degree kelvin. If a student makes an error measuring $$ \pm 0.01\,V$$ while measuring the current of $$5$$ $$mA$$ at $$300$$ $$K,$$ what will b... | [{"identifier": "A", "content": "$$0.2$$ $$mA$$ "}, {"identifier": "B", "content": "$$0.02$$ $$mA$$ "}, {"identifier": "C", "content": "$$0.5$$ $$mA$$ "}, {"identifier": "D", "content": "$$0.05$$ $$mA$$ "}] | ["A"] | null | The current voltage relation of diode is
<br><br>$$I = \left( {{e^{1000\,V/T}} - 1} \right)\,\,mA$$ (given)
<br><br>When, $$I = 5mA,{e^{1000\,\,V/T}}\, = 6mA$$
<br><br>Also, $$dl = \left( {{e^{1000\,\,V/T}}} \right) \times {{1000} \over T}$$
<br><br>(By exponential function)
<br><br>$$ = \left( {6\,mA} \right) \times ... | mcq | jee-main-2014-offline | 10,517 |
4sDwOYiT5mJCGct0 | physics | electronic-devices | semiconductor-and-p-n-junction-diode | The forward biased diode connection is: | [{"identifier": "A", "content": "<img class=\"question-image\" src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734263830/exam_images/dil9gitnymrdjghjjqqe.webp\" loading=\"lazy\" alt=\"JEE Main 2014 (Offline) Physics - Semiconductor Question 170 English Option 1\"> "}, {"identifier": "B", "content": "<img clas... | ["A"] | null | <img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264831/exam_images/kwb4fzzdshqdrk3sot4e.webp" loading="lazy" alt="JEE Main 2014 (Offline) Physics - Semiconductor Question 170 English Explanation">
<br><br>For forward bias, $$p$$-side must be at higher potential than $$n$$-side. $... | mcq | jee-main-2014-offline | 10,518 |
oGXPLiJTFE13Dh5Q | physics | electronic-devices | semiconductor-and-p-n-junction-diode | A red $$LED$$ emits light at $$0.1$$ watt uniformly around it. The amplitude of the electric field of the light at a distance of $$1$$ $$m$$ from the diode is : | [{"identifier": "A", "content": "$$5.48$$ $$V/m$$ "}, {"identifier": "B", "content": "$$7.75$$ $$V/m$$ "}, {"identifier": "C", "content": "$$1.73$$ $$V/m$$ "}, {"identifier": "D", "content": "$$2.45$$ $$V/m$$ "}] | ["D"] | null | <p>Intensity of light at a distance r, $$I = {P \over {4\pi {r^2}}}$$ [P = power]</p>
<p>Again, if the amplitude of the electric field is E<sub>0</sub></p>
<p>then $$I = {1 \over 2}c{ \in _0}E_0^2$$</p>
<p>$$\therefore$$ $${P \over {4\pi {r^2}}} = {1 \over 2}c{ \in _0}E_0^2$$</p>
<p>or, $${E_0} = \sqrt {{P \over {2\pi ... | mcq | jee-main-2015-offline | 10,519 |
DnVE0kH55DnBWvQS | physics | electronic-devices | semiconductor-and-p-n-junction-diode | The temperature dependence of resistance of $$Cu$$ and undoped $$Si$$ in the temperature range $$300-400$$ $$K,$$ is best described by : | [{"identifier": "A", "content": "Linear increases for $$Cu,$$ exponential decrease of $$Si.$$ "}, {"identifier": "B", "content": "Linear decrease for $$Cu,$$ linear decrease for $$Si$$"}, {"identifier": "C", "content": "Linear increase for $$Cu,$$ linear increase for $$Si.$$ "}, {"identifier": "D", "content": "Linear i... | ["A"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l86i49st/88fabaf6-1f84-46c9-ae16-6c0f212e152e/e80474d0-36da-11ed-b5bb-c51481bdd3e4/file-1l86i49su.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l86i49st/88fabaf6-1f84-46c9-ae16-6c0f212e152e/e80474d0-36da-11ed-b5bb-c51481bdd3e4/fi... | mcq | jee-main-2016-offline | 10,520 |
qAf99m7xYkpvG8WFPuzVl | physics | electronic-devices | semiconductor-and-p-n-junction-diode | An experiment is performed to determine the <i>I</i> - V characteristics of a Zener diode, which has a protective resistance of R = 100 $$\Omega $$, and a maximum power of dissipation rating of 1 W. The minimum voltage range of the DC source in the circuit is : | [{"identifier": "A", "content": "0 $$-$$ 5 V "}, {"identifier": "B", "content": "0 $$-$$ 8 V "}, {"identifier": "C", "content": "0 $$-$$ 12 V "}, {"identifier": "D", "content": "0 $$-$$ 24 V "}] | ["D"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266481/exam_images/ni5xya4ak6ucpf3q7qda.webp" style="max-width: 100%; height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2016 (Online) 9th April Morning Slot Physics - Semiconductor Question 160 English Explanation">
<br><br>Potent... | mcq | jee-main-2016-online-9th-april-morning-slot | 10,521 |
kk9KBnBJPLAZ4bMF | physics | electronic-devices | semiconductor-and-p-n-junction-diode | Identify the semiconductor devices whose characteristics are given below, in the order $$(a), (b), (c), (d)$$ : <br/><br/>
<img src="data:image/png;base64,UklGRhAUAABXRUJQVlA4IAQUAADQEAGdASoAA7kCP4G+2WW2LyynIfEZGsAwCWlu+/v9S/WlBs5leHoz9fPYEXDc69qv7f4Rv/M9W5++rp5o5kb//eob72Djt9qvmL0NCnBzGh+HFnfn2rIohxZ316vWTxeNJ7H5359q... | [{"identifier": "A", "content": "Simple diode, Zener diode, Solar cell, Light dependent resistance "}, {"identifier": "B", "content": "Zener diode, Simple diode, Light dependent resistance, Solar cell"}, {"identifier": "C", "content": "Solar cell, Light dependent resistance, Zener diode, simple diode"}, {"identifier": ... | ["A"] | null | Graph $$(a)$$ is for a simple diode.
<br><br>Graph $$(b)$$ is showing the $$V$$ Break down used for zener diode.
<br><br>Graph $$(c)$$ is for solar cell which shows cut-off voltage and open circuit current.
<br><br>Graph $$(d)$$ shows the variation of resistance $$h$$ and hence current with intensity of light. | mcq | jee-main-2016-offline | 10,522 |
BLQak8nJn2ejQEGlyaQXO | physics | electronic-devices | semiconductor-and-p-n-junction-diode | What is the conductivity of a semiconductor sale having electron concentration of $$5 \times {10^{18}}\,\,{m^{ - 3}},$$ hole concentration of $$5 \times {10^{19}}\,\,{m^{ - 3}},$$ electron mobility of 2.0 m<sup>2</sup> V<sup>$$-$$1</sup> s<sup>-1</sup> and hole mobility of 0.01 m<sup>2</sup> V<sup>$$-$$1</sup> s<sup>... | [{"identifier": "A", "content": "1.68 ($$\\Omega $$-m)<sup>$$-$$1</sup> "}, {"identifier": "B", "content": "1.83 ($$\\Omega $$-m)<sup>$$-$$1</sup> "}, {"identifier": "C", "content": "0.59 ($$\\Omega $$-m)<sup>$$-$$1</sup> "}, {"identifier": "D", "content": "1.20 ($$\\Omega $$-m)<sup>$$-$$1</sup> "}] | ["A"] | null | Conductivity of semiconductor,
<br><br>$$\sigma $$ = e$$\left( {{\eta _e}{\mu _e} + \eta '{\mu _h}} \right)$$
<br><br>= 1.6 $$ \times $$ 10<sup>$$-$$19</sup> (5 $$ \times $$ 10<sup>18</sup> $$ \times $$ 2 + 5 $$ \times $$ 10<sup>19</sup> $$ \times $$ 0.01)
<br><br>= 1.6 $$ \times $$ 1.05
<br><br>= 1.68 | mcq | jee-main-2017-online-8th-april-morning-slot | 10,523 |
sUA22TgwHrBPdpL8n7ul4 | physics | electronic-devices | semiconductor-and-p-n-junction-diode | In the given circuit, the current through zener diode is :
<br/><br/><img src="data:image/png;base64,UklGRgoMAABXRUJQVlA4IP4LAADQqwCdASoAA6YBP4G812W2Lr+nIZBJi/AwCWlu/CoY3C9HZ1+fsTaF2cnarMTCF90z//B6KSp4yMCa7X20/eOOkCYm/eNtU0hgUSzpx3esbvWN3rG71jd6pUTmlUT6p56fepg8jbN3rG71jd6xu9Y3esR+Y1Gqb9Wq1Wq1WgtR9eNRqtVqtVqtVqtVqtcVQK... | [{"identifier": "A", "content": "5.5 mA"}, {"identifier": "B", "content": "6.7 mA"}, {"identifier": "C", "content": "2.5 mA"}, {"identifier": "D", "content": "3.3 mA"}] | ["D"] | null | <p>Voltage across R<sub>1</sub> is given by $${V_{{R_1}}} = V - {V_Z} = 15 - 10 = 5\,V$$.</p>
<p>Resistance $${R_1} = 500\,\Omega $$</p>
<p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l38tkmew/ffc354d0-c7cb-483a-a021-413ba9fc9e7e/2f883f80-d524-11ec-aeec-6fd1cdec7420/file-1l38tkmex.png?format=png" d... | mcq | jee-main-2018-online-16th-april-morning-slot | 10,525 |
3FCFNUd2nnRYlSLD9uXAl | physics | electronic-devices | semiconductor-and-p-n-junction-diode | The circuit shown below contains two ideal diodes, each with a forward resistance of 50 $$\Omega $$. If the battery voltage is 6 V, the current through the 100 $$\Omega $$ resistance (in Amperes) is :
<br/><br/><img src="data:image/png;base64,UklGRpwZAABXRUJQVlA4IJAZAADQ4gCdASqUAjECP4G61mW2LiwnIjF5ssAwCWlu8oOx/8/4ECzl/... | [{"identifier": "A", "content": "0.027"}, {"identifier": "B", "content": "0.030"}, {"identifier": "C", "content": "0.036"}, {"identifier": "D", "content": "0.020"}] | ["D"] | null | I = $${6 \over {300}}$$ = 0.02 (D<sub>2</sub> is in reverse bias) | mcq | jee-main-2019-online-11th-january-evening-slot | 10,527 |
OD89LdaK64PMtEfv2w3rsa0w2w9jx7j7kpc | physics | electronic-devices | semiconductor-and-p-n-junction-diode | Figure shows a DC voltage regulator circuit, with a Zener diode of breakdown voltage = 6V. If the
unregulated input voltage varies between 10 V to 16 V, then what is maximum Zener current?
<img src="data:image/png;base64,UklGRloLAABXRUJQVlA4IE4LAADQmwCdASoAAwwCP4HA2Ga2L7+noLZIq/AwCWlu6BupLeLZb4+af9vas2e/ZXLAiJ8qf7xZRDy... | [{"identifier": "A", "content": "3.5 mA"}, {"identifier": "B", "content": "1.5 mA"}, {"identifier": "C", "content": "2.5 mA"}, {"identifier": "D", "content": "7.5 mA"}] | ["A"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265096/exam_images/scaaxiw8mjlmbx8blmrs.webp" style="max-width: 100%; height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2019 (Online) 12th April Evening Slot Physics - Semiconductor Question 139 English Explanation">
<br>$${I_L} =... | mcq | jee-main-2019-online-12th-april-evening-slot | 10,528 |
HvowV4O87x8yHivlUq3rsa0w2w9jwzgxe4x | physics | electronic-devices | semiconductor-and-p-n-junction-diode | The figure represents a voltage regulator circuit using a Zener diode. The breakdown voltage of the Zener
diode is 6 V and the load resistance is, R<sub>L</sub> = 4k$$\Omega $$. The series resistance of the circuit is R<sub>i</sub>
= 1 k$$\Omega $$. If the
battery voltage V<sub>B</sub> varies from 8 V to 16 V, what ar... | [{"identifier": "A", "content": "0.5 mA; 8.5 mA"}, {"identifier": "B", "content": "1.5 mA; 8.5 mA"}, {"identifier": "C", "content": "1 mA; 8.5 mA"}, {"identifier": "D", "content": "0.5 mA; 6 mA"}] | ["A"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265367/exam_images/lwaixqmdkhvhft9tmxu9.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2019 (Online) 10th April Evening Slot Physics - Semiconductor Question 142 English Explanation">
V<sub>breakdwon... | mcq | jee-main-2019-online-10th-april-evening-slot | 10,529 |
fPj9XXyRDkFr8wbs4hNd6 | physics | electronic-devices | semiconductor-and-p-n-junction-diode | The reverse breakdown voltage of a Zener
diode is 5.6 V in the given circuit.<br/><br/>
The current IZ through the Zener is :
<img src="data:image/png;base64,UklGRvgJAABXRUJQVlA4IOwJAACwcQCdASoAAxwBP4G+1mY2LywnIXL5YsAwCWlu4WjxG/Pz86f5buSx7bPHs3/dcwqHoydFjU8wG47nVJkgqLZgDudUmSCotmAO51SZIKioSVbEasGjAYU5+SPke6x3bGky8Ti4eh... | [{"identifier": "A", "content": "7 mA"}, {"identifier": "B", "content": "17 mA"}, {"identifier": "C", "content": "15mA"}, {"identifier": "D", "content": "10 mA"}] | ["D"] | null | 9 = Vz + V<sub>R<sub>1</sub></sub><br><br>
V<sub>Z</sub> = 5.6 V<br><br>
V<sub>R<sub>1</sub></sub> = 9 - 5.6<br><br>
V<sub>R<sub>1</sub></sub> = 3.4 <br><br>
$${I_{{R_1}}} = {{{V_{{R_1}}}} \over R} = {{3.4} \over {200}};\,{I_{{R_1}}} = 17\,mA$$<br><br>
V<sub>z</sub> = V<sub>R<sub>2</sub></sub> = I<sub>R<sub>2</sub></... | mcq | jee-main-2019-online-8th-april-morning-slot | 10,530 |
ZTXewnbo7UJ4SfhZVauDf | physics | electronic-devices | semiconductor-and-p-n-junction-diode | Ge and Si diodes start conducting at 0.3 V and 0.7 V respectively. In the following figure if Ge diode connection are reversed, the value of V<sub>0</sub> changes by : (assume that the Ge diode has large breakdown voltage)
<br/><br/><img src="data:image/png;base64,UklGRtwJAABXRUJQVlA4INAJAABQrACdASoAA9gBP4HA3GU2MT+nITc... | [{"identifier": "A", "content": "0.8 V"}, {"identifier": "B", "content": "0.6 V"}, {"identifier": "C", "content": "0.2 V"}, {"identifier": "D", "content": "0.4 V"}] | ["D"] | null | <b><u>Case 1</u> :
</b><br><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l8p73gma/327b3713-5d9d-439a-8a71-a6f2bd5479d2/b164cc20-4122-11ed-8a36-9f4a474c8481/file-1l8p73gmb.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l8p73gma/327b3713-5d9d-439a-8a71-a6f2bd5479d2/b164cc20-41... | mcq | jee-main-2019-online-9th-january-evening-slot | 10,533 |
slYhwAHR6GTNecnIcrAMQ | physics | electronic-devices | semiconductor-and-p-n-junction-diode | Mobility of electrons in a semiconductor is defined as the ratio of their drift velocity to the applied electric field. If, for an n-type semiconductor, the density of electrons is 10<sup>19</sup> m<sup>$$-$$3</sup> and their mobility is 1.6 m<sup>2</sup>/(V.s) then the resistivity of the semiconductor (since it is an ... | [{"identifier": "A", "content": "$$2\\,\\Omega $$m"}, {"identifier": "B", "content": "4$$\\,\\Omega $$m"}, {"identifier": "C", "content": "0.4 $$\\,\\Omega $$m"}, {"identifier": "D", "content": "0.2 $$\\,\\Omega $$m"}] | ["C"] | null | For semiconductor,
<br><br>Conductivity, $$\sigma $$ = n<sub>e</sub> q $$\mu $$<sub>e</sub> + n<sub>h</sub> q $$\mu $$<sub>h</sub>
<br><br>given that semiconductor is n-type. So contribution of holes is ignored.
<br><br>$$ \therefore $$ n<sub>h</sub> q $$\mu $$<sub>h</sub> = 0
<br><br>$$ \therefore $$... | mcq | jee-main-2019-online-9th-january-morning-slot | 10,534 |
l5xdYu2f8RSot64rM47k9k2k5l1xcks | physics | electronic-devices | semiconductor-and-p-n-junction-diode | The current i in the network is :
<img src="data:image/png;base64,UklGRpYQAABXRUJQVlA4IIoQAACQVQCdASrzANsAPm02lUgkIyIhIpObUIANiWlu4WuxG/OT8Tf0LtW/s/5Begf4p85/S/x//qn7RfAh+6dKT+3+iv8z+rn2n+Tf1H/X/1v94vfr+0/xn+U/7P+3ekPpk/gHsC+l/7p/M/65/qv6/6ef8B/Jf4t4OszvqBe5Hyr/Efzj+nf7v+7efx+z/zP+m/7T3N+rHsBfpr/m/5V/RP2G+cv7R+hn8Z81rw... | [{"identifier": "A", "content": "0.6 A"}, {"identifier": "B", "content": "0.3 A"}, {"identifier": "C", "content": "0 A"}, {"identifier": "D", "content": "0.2 A"}] | ["B"] | null | Both the diodes are reverse biased.
<img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264793/exam_images/zj1s23vircb8ds1jkwlc.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2020 (Online) 9th January Evening Slot Physics - Semiconductor Question 133 ... | mcq | jee-main-2020-online-9th-january-evening-slot | 10,535 |
iulx4TLcbT2QowGUuVjgy2xukfl2s50m | physics | electronic-devices | semiconductor-and-p-n-junction-diode | Two Zener diodes (A and B) having breakdown
voltages of 6 V and 4 V respectively, are
connected as shown in the circuit below. The
output voltage V<sub>0</sub> variation with input voltage
linearly increasing with time, is given by :
<br/>(V<sub>input</sub> = 0 V at t = 0)
<br/>(figures are qualitative)
<img src="data:... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734267097/exam_images/lo4qhgrdr5tpnqhut1le.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2020 (Online) 5th September Evening Slot Physics - Semiconductor Questio... | ["D"] | null | Till input voltage reaches 4V, both diode will stay deactvated so output voltage will be same as input voltage.
<br><br>When input voltage reach 4V, then 4V diode will get activated and it will transfer only 4V to the output but as a rasistance is present in series with the 4V diode so some voltage drop will happen acr... | mcq | jee-main-2020-online-5th-september-evening-slot | 10,536 |
ICqUWbAOPejxd9Jby2jgy2xukff4sbr7 | physics | electronic-devices | semiconductor-and-p-n-junction-diode | With increasing biasing voltage of a photodiode,
the photocurrent magnitude : | [{"identifier": "A", "content": "Increases initially and after attaining\ncertain value, it decreases"}, {"identifier": "B", "content": "Increases linearly"}, {"identifier": "C", "content": "Increases initially and saturates finally"}, {"identifier": "D", "content": "Remains constant"}] | ["C"] | null | In photodiode, photocurrent increases with
increasing biasing voltage and then becomes
saturated. | mcq | jee-main-2020-online-5th-september-morning-slot | 10,537 |
cEUo9DA9LRQQXXQhIajgy2xukf3u0vk4 | physics | electronic-devices | semiconductor-and-p-n-junction-diode | Which of the following will NOT be observed when a multimeter (operating in resistance measuring
mode) probes connected across a component, are just reversed? | [{"identifier": "A", "content": "Multimeter shows NO deflection in both cases i.e. before and after reversing the probes if the\nchosen component is metal wire."}, {"identifier": "B", "content": "Multimeter shows a deflection, accompanied by a splash of light out of connected component in one direction and NO deflectio... | ["D"] | null | (1) Multimeter shows deflection when it connects with capacitor.
<br><br>(2) If we assume that LED has negligible resistance then multimeter shows no deflection for the forward bias but when it connects in reverse direction, it break down occurs so splash of light out.
<br><br>(3) The resistance of metal wire may be ta... | mcq | jee-main-2020-online-3rd-september-evening-slot | 10,538 |
LnRZ1avI0pLVSq6I8Njgy2xukf3r7m2l | physics | electronic-devices | semiconductor-and-p-n-junction-diode | If a semiconductor photodiode can detect a photon with a maximum wavelength of 400 nm, then
its band gap energy is :
<br/><br/>Planck’s constant h = 6.63 $$ \times $$ 10<sup>–34</sup> J.s. Speed of light c = 3 $$ \times $$ 10<sup>8</sup>
m/s | [{"identifier": "A", "content": "1.5 eV"}, {"identifier": "B", "content": "2.0 eV"}, {"identifier": "C", "content": "3.1 eV"}, {"identifier": "D", "content": "1.1 eV"}] | ["C"] | null | $$E = {{hc} \over \lambda }$$
<br><br>= $${{6.63 \times {{10}^{ - 34}} \times 3 \times {{10}^8}} \over {400 \times {{10}^{ - 9}}}}$$
<br><br>= $${{1240} \over {400}}$$ eV
<br><br>= 3.1 eV | mcq | jee-main-2020-online-3rd-september-evening-slot | 10,539 |
PMQIGV1VZ0s4XAiblrjgy2xukf22zwt6 | physics | electronic-devices | semiconductor-and-p-n-junction-diode | When a diode is forward biased, it has a
voltage drop of 0.5 V. The safe limit of current
through the diode is 10 mA. If a battery of emf
1.5 V is used in the circuit, the value of
minimum resistance to be connected in series
with the diode so that the current does not
exceed the safe limit is | [{"identifier": "A", "content": "50 $$\\Omega $$"}, {"identifier": "B", "content": "200 $$\\Omega $$"}, {"identifier": "C", "content": "300 $$\\Omega $$"}, {"identifier": "D", "content": "100 $$\\Omega $$"}] | ["D"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264087/exam_images/lwixd0dpakgiutyuslmo.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2020 (Online) 3rd September Morning Slot Physics - Semiconductor Question 128 English Explanation">
<br><br>1.5 ... | mcq | jee-main-2020-online-3rd-september-morning-slot | 10,540 |
khJXvecpTHt3HBDsJljgy2xukety43nz | physics | electronic-devices | semiconductor-and-p-n-junction-diode | Take the breakdown voltage of the <br/>zener diode used in the given circuit as 6V. <br/>For the input voltage shown in figure below, <br/>the time variation of the output voltage is: <br/>(Graphs drawn are schematic and not to scale)
<img src="data:image/png;base64,UklGRvIIAABXRUJQVlA4IOYIAABwNwCdASpoAWYAPm0ylkekIqKhJ... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734265306/exam_images/sncdvmnpu9o0zficspup.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2020 (Online) 4th September Morning Slot Physics - Semiconductor Questio... | ["C"] | null | As there are two Zener diodes in reverse polarity so if one is in forward bias the other will be in reverse bias
and above 6V the reverse bias will too be in conduction mode. Therefore when voltage is more than 6V the
output will be constant. And when it is less than 6V it will follow the input voltage so correct answe... | mcq | jee-main-2020-online-4th-september-morning-slot | 10,541 |
EUlS5c0QYGAxzEOUvb7k9k2k5ldxvy1 | physics | electronic-devices | semiconductor-and-p-n-junction-diode | The circuit shown below is working as a 8 V
dc regulated voltage source. When 12 V is used
as input, the power dissipated (in mW) in each
diode is; (considering both zener diodes are
identical) _________.
<img src="data:image/png;base64,UklGRhAMAABXRUJQVlA4IAQMAACQUQCdASo5AQUBPm02mEgkIyKhI/OJ6IANiWlu/HyZN+tQzf0p/jn5DeE... | [] | null | 40 | Current in circuit = $${{12 - 8} \over {200 + 200}}$$ = 10<sup>-2</sup> A
<br><br>So power dissipited in each diode = VI
<br><br>= 4 $$ \times $$ 10<sup>-2</sup>
<br><br>= 40 mW | integer | jee-main-2020-online-9th-january-evening-slot | 10,542 |
NkMK9F3ClpsfmbrBzz7k9k2k5f5gum2 | physics | electronic-devices | semiconductor-and-p-n-junction-diode | In the figure, potential difference between A and B is :
<img src="data:image/png;base64,UklGRtYMAABXRUJQVlA4IMoMAAAQUACdASp1Ac8APm02lkikIyIhIdPLIIANiWlu4W3BG/Of8M/xv8U+/3+0/kJ4jvl36p/Sf2B3M74A7r32z+f/0D/W+m/9+/if8+/4H9J9Dfdh+6/Y18gXo3+t/yr+l/5z+sftx7H/8Z/Fv2Z8R2rXoBeyXyX+4/yL+x/6n+uedt+v/xf9sfdT6ef4r3A/07/yv85/cv+n+1B... | [{"identifier": "A", "content": "10 V"}, {"identifier": "B", "content": "5 V"}, {"identifier": "C", "content": "zero"}, {"identifier": "D", "content": "15 V"}] | ["A"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267728/exam_images/dsoxfbvlqasfgplysnp4.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2020 (Online) 7th January Evening Slot Physics - Semiconductor Question 137 English Explanation">
<br>Here the d... | mcq | jee-main-2020-online-7th-january-evening-slot | 10,545 |
GtYwNUjuIchhqxBOO01klrixigv | physics | electronic-devices | semiconductor-and-p-n-junction-diode | In connection with the circuit drawn below, the value of current flowing through 2 k$$\Omega$$ resistor is _________ $$\times$$ 10<sup>$$-$$4</sup> A.<br/><br/><img src="data:image/png;base64,UklGRpgKAABXRUJQVlA4IIwKAABwqQCdASoAA7YBP4HA2mU2MC0nIZXJcsAwCWlu4XKRG/Pt9JbmbET3F7s3rBQlPOVU9//+q4sbj6gDpDwuTH1AHSHhcmPqAOkPC5Mf... | [] | null | 25 | Given, resistance, R = 2 k$$\Omega$$ = 2 $$\times$$ 10<sup>3</sup> $$\Omega$$<br/><br/>In Zener breakdown,<br/><br/>$$i = {V \over R} = {5 \over {2 \times {{10}^3}}} = 2.5 \times {10^{ - 3}}$$<br/><br/>$$\because$$ $$x \times {10^{ - 4}} = 25 \times {10^{ - 4}}$$<br/><br/>$$\therefore$$ x = 25 | integer | jee-main-2021-online-24th-february-morning-slot | 10,546 |
i95WpdvObIwTI19uj01klrolqw3 | physics | electronic-devices | semiconductor-and-p-n-junction-diode | Zener breakdown occurs in a p $$-$$ n junction having p and n both : | [{"identifier": "A", "content": "heavily doped and have wide depletion layer."}, {"identifier": "B", "content": "lightly doped and have narrow depletion layer."}, {"identifier": "C", "content": "heavily doped and have narrow depletion layer."}, {"identifier": "D", "content": "lightly doped and have wide depletion layer... | ["C"] | null | The zener breakdown occurs in the heavily doped p-n junction diode. Heavily doped p-n junction diodes have narrow depletion region. | mcq | jee-main-2021-online-24th-february-evening-slot | 10,547 |
u8ujECKdBMbuaHpCXw1klthilgm | physics | electronic-devices | semiconductor-and-p-n-junction-diode | LED is constructed from Ga-As-P semiconducting material. The energy gap of this LED is 1.9 eV. Calculate the wavelength of light emitted and its colour.<br/><br/>[h = 6.63 $$\times$$ 10<sup>$$-$$34</sup> Js and c = 3 $$\times$$ 10<sup>8</sup> ms<sup>$$-$$1</sup>] | [{"identifier": "A", "content": "654 nm and orange colour"}, {"identifier": "B", "content": "654 nm and red colour"}, {"identifier": "C", "content": "1046 nm and red colour"}, {"identifier": "D", "content": "1046 nm and blue colour"}] | ["B"] | null | We know that $$E = {{hc} \over \lambda }$$<br><br>$$\lambda = {{hc} \over E} \Rightarrow {{1240(in\,eV)} \over {E(in\,eV)}}$$<br><br>$$\lambda = {{1240} \over {1.9}}$$<br><br>= 652.63 nm $$ \approx $$ 654 nm<br><br>Wavelength of red light is 620 nm to 750 nm | mcq | jee-main-2021-online-26th-february-morning-slot | 10,550 |
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