Question
stringlengths
2
3k
label
int64
0
1
What defines a culture in a company?
0
10. Equation of asymptotes are a. $5 x y+2 x^{2}+2 y^{2}=0$ b. $3 x^{2}+4 y^{2}+6 x y=0$ c. $2 x^{2}+2 y^{2}-5 x y=0$ d. none of these
1
What should I do to impress a girl?
0
7. Which of the following inequalities hold true in any triangle $A B C$ ? a. $\sin \frac{A}{2} \sin \frac{B}{2} \sin \frac{C}{2} \leq \frac{1}{8}$ b $\cos \frac{A}{2} \cos \frac{B}{2} \cos \frac{C}{2} \leq \frac{3 \sqrt{3}}{8}$. c. $\sin ^{2} \frac{A}{2}+\sin ^{2} \frac{B}{2}+\sin ^{2} \frac{C}{2}<\frac{3}{4}$ d. $\co...
1
What does research show about sexual orientation?
0
47. If $\alpha$ and $\beta$ are the roots of the equation $x^{2}-a x+b=0$ and $A_{11}=\alpha^{\prime \prime}+\beta^{\prime \prime}$, then which of the following is true? a. $A_{n+1}=a A_{n}+b A_{n-1}$ b. $A_{n+1}=b A_{n}+a A_{n}$. c. $A_{n+1}=a A_{n}-b A_{n-1}$ d. $A_{n+1}=b A_{n}-a A_{n-1}$
1
30. A long, straight wire is fixed horizontally and carries a current of $50.0 \mathrm{~A}$. A second wire having linear mass density $1.0 \times 10^{-4} \mathrm{~kg} \mathrm{~m}^{-1}$ is placed parallel to and directly above this wire at a separation of $5 \cdot 0 \mathrm{~mm}$. What current should this second wire ca...
1
(i) ![](https://cdn.mathpix.com/cropped/2024_07_06_0fe2606e7d624fec5173g-167.jpg?height=393&width=1355&top_left_y=1858&top_left_x=336) (ii) ![](https://dataprep-doubtsolver-pureessence.s3.amazonaws.com/34271e57-f2af-4b12-9b56-f0ad24571431) When two hydrogen of anthracene is replaced by bromine then number of meso is...
1
78. What is the magnitude of $\vec{a} \times(\vec{b} \times \vec{a})$ if $a=3.90, b=2.70$, and the angle between the two vectors is $63.0^{\circ}$ ?
1
What philosophical traditions developed during the period of the 5th to the 13th centuries?
0
20. A potential of $10000 \mathrm{~V}$ is applied across an $\mathrm{X}$-ray tube. Find the ratio of de-Broglie wavelength associated with incident electrons to the minimum wavelength associated with X-rays. (Given, $e / m=1.8 \times 10^{11} \mathrm{C} / \mathrm{kg}$ for electrons) (a) 10 (b) 20 (c) $1 / 10$ (d) $1 / ...
1
How do I remove the blue squiggle icon from the Facebook messenger and get back to the grey 'f' icon?
0
3. ![](https://cdn.mathpix.com/cropped/2023_12_28_092f08a9ae3c385eb2ccg-556.jpg?height=244&width=330&top_left_y=1537&top_left_x=478) In the above circuit, $C=\frac{\sqrt{3}}{2} \mu \mathrm{F}, R_{2}=20 \Omega, L=\frac{\sqrt{3}}{10} \mathrm{H}$ and $R_{1}=10 \Omega$. Current in $L-R_{1}$ path is $I_{1}$ and in $C-R_{...
1
14. A solution of a metal ion when treated with $\mathrm{KI}$ gives a red precipitate which dissolves in excess $\mathrm{KI}$ to give a colourless solution. Moreover, the solution of metal ion on treatment with a solution of cobalt (II) thiocyanate gives rise to a deep blue crystalline precipitate. The metal ion is (a...
1
Who was the leader of the Irish political party in the 1880s?
0
Does YouTube pay you for likes and views of your uploaded educational videos? How much?
0
How can I get green card? I have F2 visa.
0
32. The coefficient of $x$ in the equation $x^{2}+p x+q=0$ was wrongly written as 17 in place of 13 and the roots thus found was -2 and -15 . Then the roots of the correct equation are a. $-3,10$ b. $-3,-10$ c. $3,-10$ d. none of these
1
47. A plank of mass $2 \mathrm{~kg}$ and length $1 \mathrm{~m}$ is placed on horizontal floor. A small block of mass $1 \mathrm{~kg}$ is placed on top of the plank, at its right extreme end. The coefficient of friction between plank and floor is 0.5 and that between plank and block is 0.2 . If a horizontal force $=30 \...
1
3. Find how the voltage across the capacitor $C$ varies with time $t$ in figure, after the shorting of the switch $\mathrm{S}_{\mathrm{w}}$ at the moment $t=0$. (a) $V=\frac{\xi}{2}\left(1-e^{-2 t / R C}\right)$ (b) $V=\xi\left(1-e^{-2 t / R C}\right)$ (c) $V=\xi\left(1-e^{-3 t / R C}\right)$ ![](https://cdn.mathpi...
1
8. The coercivity of a small magnet where the ferromagnet gets demagnetised is $3 \times 10^{3} \mathrm{Am}^{-1}$. The current required to be passed in a solenoid of length $10 \mathrm{~cm}$ and number of turns 100 , so that the magnet gets demagnetised when inside the solenoid is (a) $30 \mathrm{~mA}$ (b) $60 \mathr...
1
4. $\tan ^{-1}(-\sqrt{3})$
1
Corruption disintegrates government capacity when public offices are what?
0
3. The radius of the circle inscribed in the triangle formed by any two vertices of square and the centre is a. $2(\sqrt{2}-1)$ b. $2(\sqrt{2}+1)$ c. $\sqrt{2}(\sqrt{2}-1)$ d. None of these
1
What is the best way to learn English?
0
3. The correct electronic configuration and spin-only magnetic moment $(\mathrm{BM})$ of $\mathrm{Gd}^{3+}(\mathrm{Z}=64)$, respectively, are: (a) $[\mathrm{Xe}] 4 f^{7}$ and 8.9 (b) $[\mathrm{Xe}] 4 f^{7}$ and 7.9 (c) $[\mathrm{Xe}] 5 f^{7}$ and 8.9 (d) $[\mathrm{Xe}] 5 f^{7}$ and 7.9
1
How do I write a balanced equation for Mg + O2?
0
What is a good inpatient drug and alcohol rehab center in Taylor County FL?
0
What do Muslims think of Christianity?
0
NAME top small amount stocks for share market?
0
8. $1.2+2.2^{2}+3.2^{3}+\ldots+n .2^{n}=(n-1) 2^{n+1}+2$.
1
What's the function of board directors?
0
What are some ways to improve English?
0
What effect did the undermining of The league of Nations have on the people?
0
How can learning Morse code help me?
0
What am I supposed to do after completing a Pharm.D. from India? What are the areas of specialization?
0
What is similar to straight talk but cheaper?
0
11. Statement 1: If $p$ is a prime number $(p \neq 2)$, then $\left[(2+\sqrt{5})^{p}\right]$ $-2^{p+1}$ is always divisible by $p$ (where [.] denotes the greatest integer function). Statement 2: If $n$ is prime, then ${ }^{n} C_{1},{ }^{n} C_{2},{ }^{n} C_{3}, \ldots,{ }^{n} C_{n-1}$ must be divisible by $n$.
1
8. An inductance of $2 \mathrm{H}$ carries a current of $2 \mathrm{~A}$. To prevent sparking when the circuit is broken a capacitor of $4 \mu \mathrm{F}$ is connected across the inductance. The voltage rating of the capacitor is of the order of (a) $10^{3} \mathrm{~V}$ (b) $10 \mathrm{~V}$ (c) $10^{5} \mathrm{~V}$ (d) ...
1
Why do famous people on Quora never follow back their followers?
0
What issue has moved to the forefront in recent years?
0
What are the 50 states in the Union known as?
0
What's the best site for online translations?
0
Is centripetal acceleration linear?
0
How should Californians vote on 2016's Proposition 56?
0
What are the individual images with action called in comics?
0
Is all the speculation about Hillary Clinton's health unfair or justified?
0
What emotion do political campaigns appeal to in regard to terrorism?
0
10. Two samples $A$ and $B$ are initially kept in the same state. The sample $A$ is expanded through an adiabatic process and the sample $B$ through an isothermal process. The final volumes of the samples are the same. The final pressures in $A$ and $B$ are $p_{A}$ and $p_{B}$ respectively. (a) $p_{A}>p_{B}$ (b) $p_{A}...
1
53. An ellipse is sliding along the co-ordinate axes. If the foci of the ellipse are $(1,1)$ and $(3,3)$, then area of the director circle of the ellipse (in sq. units) is a. $2 \pi$ b. $4 \pi$ c. $6 \pi$ d. $8 \pi$
1
12. Let N denote the number of ways in which 3 n persons can be selected from 2 n men, 2 n women and 2 n kids. Then (a) $\mathrm{N}=$ coefficient of $\mathrm{t}^{3 \mathrm{n}}$ in $\left(1-\mathrm{t}^{2 \mathrm{n}+1}\right) 3(1-\mathrm{t})^{-3}$ (b) $\mathrm{N}={ }^{3 \mathrm{n}+2} \mathrm{C}_{3 \mathrm{n}}-3 \cdot{ ...
1
What all places can one visit on a two day trip in Kerala, India?
0
46. Write balanced equation involved in the preparation of (i) Anhydrous aluminium chloride from alumina. (ii) Bleaching powder from slaked lime. (iii) Tin metal from cassiterite (iv) Chlorine from sodium chloride.
1
35. A parallel plate capacitor of capacitance $C$ is connected to a battery and is charged to a potential difference $V$. Another capacitor of capacitance $2 C$ is similarly charged to a potential difference $2 \mathrm{~V}$. The charging battery is now disconnected and the capacitors are connected in parallel to each o...
1
Everything you need to know about precalc?
0
| 5 | ![](https://cdn.pureessence.tech/b522f4c6-8a3d-4b2d-9a2c-d51eedf0571c.png) | | | | |
1
33. Product of roots of the equation $\frac{\log _{8}\left(8 / x^{2}\right)}{\left(\log _{8} x\right)^{2}}=3$ is a. 1 b. $1 / 2$ c. $1 / 3$ d. $1 / 4$
1
61. The family of the curves which intersects the family of rectangular hyperbola $x y=c^{2}$ orthogonally is a. family of parabola b. family of ellipse c. family of circle d. family of rectangular hyperbola
1
Where did Chinese merchants explore?
0
What was the title of Baji Rao I?
0
Example 6.70 If $k$ and $n$ be +ive integers and $s_{k}=1^{k}$ $+2^{k}+3^{k}+\cdots+n^{k}$, then prove that $$ \sum_{r=1}^{m}{ }^{m+1} C_{r} s_{r}=(n+1)^{m+1}-(n+1) $$
1
Which Pali District temple is dedicated to Lord Adinath?
0
3. Conversion of benzene diazonium chloride to chlorobenzene is an example of which of the following reactions? (a) Claisen (b) Friedel-craf (c) Sandmeyer (d) Wurtz
1
How can I know if my wife is a cheater?
0
What is a monoecious plant?
0
52. For the reaction $\mathrm{CO}(\mathrm{g})+\mathrm{H}_{2} \mathrm{O}(\mathrm{g}) \rightleftharpoons \mathrm{CO}_{2}(\mathrm{~g})+\mathrm{H}_{2}(\mathrm{~g})$ at a given temperature, the equilibrium amount of $\mathrm{CO}_{2}(\mathrm{~g})$ can be increased by (a) adding a suitable catalyst (b) adding an inert gas...
1
My employer has not paid taxes to the IRS for my most of wages, and did not give me a final paycheck when I was laid off. In 5 months of working, I have received only two official paychecks, and some cash advances. Can I sue for unpaid wages?
0
When was Harsha crowned by the states he united?
0
12. A beam of light consisting of two wavelengths $6500 \AA$ and $5200 \AA$ is used to obtain interference fringes in YDSE. The distance between slits is $2 \mathrm{~mm}$ and the distance of the screen from slits is $120 \mathrm{~cm}$. What is the least distance from central maximum where the bright due to both wavelen...
1
10. A particle moves in the $x y$-plane with constant acceleration a directed along the negative $y$-axis. The equation of path of the particle has the form $y=b x-c x^{2}$, where $b$ and $c$ are positive constants. Find the velocity of the particle at the origin of coordinates.
1
Is Superman Jewish?
0
25. The pairs of physical quantities that have the same dimensions is (are ) (a) Reynolds number and coefficient of friction (b) Curie and frequency of a light wave (c) latent heat and gravitational potential (d) Planck's constant and torque
1
Are the real life spies/CIA/FBI agents as good as they are made out to be in movies?
0
Indian armed forces are different from the other nations' armies. What is its role in the civil area and how is it different from other countries' armies?
0
Which institute is better for graphic design in Pune, Anibrain or MAAC?
0
3.209. A straight copper wire of length $l=1000 \mathrm{~m}$ and crosssectional area $S=1.0 \mathrm{~mm}^{2}$ carries a current $I=4.5$ A. Assuming that one free electron corresponds to each copper atom, find: (a) the time it takes an electron to displace from one end of the wire to the other; (b) the sum of electric...
1
15. A molal solution is one that contains one mole of a solute in: (a) $1000 \mathrm{~g}$ of the solvent (b) one litre of the solvent (c) one litre of the solution (d) 22.4 litres of the solution
1
18. For the reaction $\mathrm{SO}_{2}(\mathrm{~g})+\frac{1}{2} \mathrm{O}_{2}(\mathrm{~g}) \rightleftharpoons \mathrm{SO}_{3}(\mathrm{~g})$, if $K_{\mathrm{p}}=K_{\mathrm{c}}(R T)^{x}$ where the symbols have usual meaning then the value of $x$ is (assuming ideality): (a) -1 (b) $-\frac{1}{2}$ (c) $\frac{1}{2}$ (d)...
1
1.9 Explain (i) The basis of similarities and differences between metallic and ionic crystals. (ii) Ionic solids are hard and brittle.
1
What is contemporary humanism optimistic about?
0
What are the basic categories of computer hardware?
0
5. A student measured the length of a rod and wrote it as $3.50 \mathrm{~cm}$. Which instrument did he use to measure it? (a) A meter scale (b) A vernier caliper where the 10 divisions in vernier scale matches with 9 divisions in main scale and main scale has 10 divisions in $1 \mathrm{~cm}$ (c) A screw gauge hav...
1
What are some good websites to learn data structures and algorithms?
0
7. Find the number of ways in which the birthdays of six different persons will fall in exactly two calendar months.
1
4. The one that is not expected to show isomerism is : [Main Sep. 02, 2020 (II)] (a) $\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{4}\left(\mathrm{H}_{2} \mathrm{O}\right)_{2}\right]^{2+}$ (b) $\left[\mathrm{Ni}(\mathrm{en})_{3}\right]^{2+}$ (c) $\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{2} \mathrm{Cl}_{2}\r...
1
27. $R, S$ and $T$ respectively, are (a) $\mathrm{SO}_{2} \mathrm{Cl}_{2}, \mathrm{PCl}_{5}$ and $\mathrm{H}_{3} \mathrm{PO}_{4}$ (b) $\mathrm{SO}_{2} \mathrm{Cl}_{2}, \mathrm{PCl}_{3}$ and $\mathrm{H}_{3} \mathrm{PO}_{3}$ (c) $\mathrm{SOCl}_{2}, \mathrm{PCl}_{3}$ and $\mathrm{H}_{3} \mathrm{PO}_{2}$ (d) $\mathrm{SO...
1
41. A filter transmits only the radiation of wavelength greater than $440 \mathrm{~nm}$. Radiation from a hydrogendischarge tube goes through such a filter and is incident on a metal of work function $2 \cdot 0 \mathrm{eV}$. Find the stopping potential which can stop the photoelectrons.
1
What makes life worthwhile for you?
0
18. The dissociation constant of an acid HA is $1 \times 10^{-5}$. The pH of 0.1 molar solution of the acid will be approximately (a) 3 (b) 5 (c) 1 (d) 6
1
- Example 34.10 In the above problem if each decay produces $E_{0}$ energy, then find (a) power produced at time $t$ (b) total energy produced upto time $t$
1
10. The function defined as $$ f(x)=\lim _{n \rightarrow \infty}\left[\begin{array}{ll} \cos ^{2 n} x & \text { if } x<0 \\ \frac{n}{\sqrt{1+x^{n}}} & \text { if } 0 \leq x \leq 1 \\ \frac{1}{1+x^{n}} & \text { if } x>1 \end{array}\right. $$ which of the following does not hold good? a. continuous at $x=0$ but discon...
1
Is Pakistan-Russia joint military exercise biggest failure of Modi Government?
0
61. If $\left|z_{2}+i z_{1}\right|=\left|z_{1}\right|+\left|z_{2}\right|$ and $\left|z_{1}\right|=3$ and $\left|z_{2}\right|=4$, then area of $\triangle A B C$, if affixes of $A, B$ and $C$ are $z_{1}, z_{2}$ and $\left[\left(z_{2}-i z_{1}\right) /(1-i)\right]$ respectively, is, a. $\frac{5}{2}$ b. 0 c. $\frac{25}{2}$ ...
1
22. How much will the potential of $\mathrm{Zn} / \mathrm{Zn}^{2+}$ change if the solution of $\mathrm{Zn}^{2+}$ is diluted 10 times? (a) Increase by 0.03 V (b) Decrease by 0.03 V (c) Increase by 0.059 V (d) Decrease by 0.059 V
1
How is Fiitjee in Mumbai?
0
What are the things needed to be learned for IoT for an ECE student?
0
How do we write the exam?
0
13. A cyclist moving on a level road at $4 \mathrm{~m} / \mathrm{s}$ stops pedalling and lets the wheels come to rest. The retardation of the cycle has two components: a constant $0.08 \mathrm{~m} / \mathrm{s}^{2}$ due to friction in the working parts and a resistance of $0.02 v^{2} / \mathrm{m}$ where $v$ is speed in ...
1
Are there harmful effects of eating raw eggs?
0
Does the Universe exist?
0