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44. A tube of fine bore $A B$ is connected to a manometer $M$ as shown. The stop cock $S$ controls the flow of air. $A B$ is dipped into a liquid whose surface tension is $T$. On opening the stop cock for a while, a bubble is formed at $B$ and the manometer level is recorded, showing a difference $h$ in the levels in t... | 1 |
Which countries still have a "morning queue" at school? and Why? | 0 |
10. Which of the following enzyme converts starch into maltose?
[Main Online April 9, 2013]
(a) Diastase
(b) Maltase
(c) Zymase
(d) Invertase | 1 |
7 Un Uniform electric flux. Figure 32-30
Figure 32-29
shows a circular region of radius $R=3.00 \mathrm{~cm}$ in which a uniform electric flux is directed out of the plane of the page. Th... | 1 |
7. Find the particular solution of the differential equation $\left(1+e^{2 x}\right) d y+\left(1+y^{2}\right) e^{x} d x=0$, given that $y=1$ when $x=0$. | 1 |
16. The reaction of zinc with dilute and concentrated nitric acid, respectively, produces:
(a) $\mathrm{NO}$ and $\mathrm{N}_{2} \mathrm{O}$
(b) $\mathrm{NO}_{2}$ and $\mathrm{N}_{2} \mathrm{O}$
(c) $\mathrm{N}_{2} \mathrm{O}$ and $\mathrm{NO}_{2}$
(d) $\mathrm{NO}_{2}$ and $\mathrm{NO}$ | 1 |
29. Let $a, b \in R$ and $f: R \rightarrow R$ be defined by $f(x)=a \cos \left(\left|x^{3}-x\right|\right)+b|x| \sin \left(\left|x^{3}+x\right|\right)$. Then, $f$ is
(2016 Adv.)
(a) differentiable at $x=0$, if $a=0$ and $b=1$
(b) differentiable at $x=1$, if $a=1$ and $b=0$
(c) not differentiable at $x=0$, if $a=1$ ... | 1 |
Which symbol/image best represents "curiosity"? | 0 |
The decomposition of $\mathrm{N}_2 \mathrm{O}_5$ in $\mathrm{CCl}_4$ at 318 K has been studied by monitoring the concentration of $\mathrm{N}_2 \mathrm{O}_5$ in the solution. Initially the concentration of $\mathrm{N}_2 \mathrm{O}_5$ is $2.33 \mathrm{~mol} \mathrm{~L}^{-1}$ and after 184 minutes, it is reduced to $2.08... | 1 |
Example 8.9 What is meant by 'disproportionation' of an oxidation state? Give an example.
Solution When a particular oxidation state becomes less stable relative to other oxidation states, one lower, one higher, it is said to undergo disproportionation. For example, manganese (VI) becomes unstable relative to manganese... | 1 |
What type of test is used to tell that a brain is active even during sleep? | 0 |
69.co In Fig. 35-44, a broad beam of light of wavelength 630 nm is incident at $90^{\circ}$ on a thin, wedge-shaped film with index of refraction 1.50. Transmission gives 10 bright and 9 dark fringes along the film's length. What is the left-to-right change in film thickness? | 1 |
How do warrant lookups work in California? | 0 |
21. Calamine is an ore of :
(a) zinc
(b) aluminium
(c) iron
(d) copper | 1 |
How does one become a mathematical physicist? | 0 |
Package in HCL for fresher? | 0 |
What continent did this revival take place on? | 0 |
How does GST works? | 0 |
What are some keyboard shortcuts? | 0 |
59. The least value of the expression
$2 \log _{10} x-\log _{x}(0.01)$, for $x>1$, is
(a) 10
(b) 2
(c) -0.01
(d) None of these | 1 |
How many rest days should you have when going to the gym. Currently I got 6 times a week and I'm not sure if that is too much or not? | 0 |
10. Let $S_{1}, S_{2}, \ldots$ be squares such that for each $n \geq 1$ the length of a side of $S_{n}$ equals the length of a diagonal of $S_{n+1}$. If the length of a side of $S_{1}$ is $10 \mathrm{~cm}$, then for which of the following values of $n$ is the area of $S_{n}$ less than $1 \mathrm{sq} \mathrm{cm}$ ?
(19... | 1 |
How do I find the volume equation in chemistry? | 0 |
What religion believes that God is infinitely simple and not subject to time? | 0 |
What is Victoria's Secret pink nation? | 0 |
I have a crush on this girl but she doesn't want to date, what can I do? | 0 |
How can I know when to use the registered trademark symbol? | 0 |
If my name is RS gokulnath how to write first name, middle name last name? | 0 |
How can I score above 90% in CBSE class 11 (PCM with CS)? | 0 |
Why is the media so against Arvind Kejriwal and AAP? | 0 |
3. Consider the hypothetical situation where the azimuthal quantum number, $l$, takes values $0,1,2, \ldots . . n+1$, where $n$ is the principal quantum number. Then, the element with atomic number :
(a) 9 is the first alkali meta
(b) 13 has a half-filled valence subshell
(c) 8 is the first noble gas
(d) 6 has a ... | 1 |
What are some common legal things people hire lawyers for but don't actually need them? | 0 |
How much was the partnership worth? | 0 |
How can the drive from Edmonton to Auckland be described, and how do these cities' attractions compare to those in Ottawa? | 0 |
107. Maximum number of common normals of $y^{2}=4 a x$ and $x^{2}=4 b y$ is equal to
a. 3
b. 4
c. 6
d. 5 | 1 |
12. In which case of mixing of a strong acid and a base, each being of 1 N concentration, the increase in temperature is the highest?
(a) 20 mL acid and 30 mL alkali
(b) 10 mL acid and 40 mL alkali
(c) 25 mL acid and 25 mL alkali
(d) 35 mL acid and 15 mL alkali | 1 |
What are my chances of getting admitted to an MS in automotive engineering in RWTH Aachen? How do I increase them? | 0 |
11. A gas undergoes change from state A to state B. In this process, the heat absorbed and work done by the gas is $5 \mathrm{~J}$ and $8 \mathrm{~J}$, respectively. Now gas is brought back to A by another process during which $3 \mathrm{~J}$ of heat is evolved. In this reverse process of B to A :
(a) $10 \mathrm{~J... | 1 |
7. $\quad$ The graph between $|\psi|^{2}$ and $r$ (radial distance) is shown below. This represents :
(a) $3 s$ orbital
(b) $2 s$ orbital
(c) $1 s$ orbital
(d) $2 p$ orbital | 1 |
5. The major product of the following reaction is:
 | 1 |
11. If $\omega(\neq 1)$ is a cube root of unity and $(1+\omega)^{7}=A+B \omega$, then $A$ and $B$ are respectively
(1995, 2M)
(a) 0,1
(b) 1,1
(c) 1,0
(d) $-1,1$ | 1 |
17. The equation of motion of a particle of mass $1 \mathrm{~g}$ is $\frac{d^{2} x}{d t^{2}}+\pi^{2} x=0$, where $x$ is displacement (in $\mathrm{m}$ ) from mean position. The frequency of oscillation is (in $\mathrm{Hz}$ )
(a) $1 / 2$
(b) 2
(c) $5 \sqrt{10}$
(d) $1 / 5 \sqrt{10}$ | 1 |
3. The compounds $\mathrm{A}$ and $\mathrm{B}$ in the following reaction are, respectively
(a) A = Benzyl alcohol, $\mathrm{B}=$ Benzyl cyanide
(b) $\mathrm{A}=$ Benzyl chloride, $\mathrm{... | 1 |
10. $28 \mathrm{~g}$ of $\mathrm{N}_{2}$ gas is contained in a flask at a pressure of $10 \mathrm{~atm}$ and at a temperature of $57^{\circ} \mathrm{C}$. It is found that due to leakage in the flask, the pressure is reduced to half and the temperature to $27^{\circ} \mathrm{C}$. The quantity of $\mathrm{N}_{2}$ gas tha... | 1 |
4. Arrange the following electromagnetic radiations in the order of increasing energy.
A. Blue light
B. Yellow light
C. X-ray
D. Radio wave
(a) D, B, A, C
(b) A, B, D, C
(c) C, A, B, D
(d) B, A, D, C | 1 |
What are slang words for "yes"? | 0 |
Is MBA in economics a good course? | 0 |
How do you learn to stop being so attached to certain outcomes? | 0 |
1. A very long solenoid of radius $R$ is carrying current $I(t)=k t e^{-\alpha t}(k>0)$, as a function of time $(t \geq 0)$. Counter clockwise current is taken to be positive. A circular conducting coil of radius $2 R$ is placed in the equatorial plane of the solenoid and concentric with the solenoid. The current induc... | 1 |
What are the gestation periods for mammals other than humans? | 0 |
What is the best way to get started with Machine Learning? | 0 |
Who found evidence that where the media had freedom there was less political corruption? | 0 |
What is human phycology? | 0 |
2. If we define gravitation flux linked with any surface according to the equation
$$
\phi_{g}=\int \overrightarrow{E_{g}} \cdot \overrightarrow{d A}
$$
(where $\overrightarrow{E_{g}}$ is gravitational field intensity and $\overrightarrow{d A}$ is small area element), then what is the magnitude of the gravitational f... | 1 |
21. The enthalpy of vapourization of liquid is $30 \mathrm{~kJ} \mathrm{~mol}^{-1}$ and entropy of vapourization is $75 \mathrm{~J} \mathrm{~mol}^{-1} \mathrm{~K}$. The boiling point of the liquid at $1 \mathrm{~atm}$ is
$[$
(a) $250 \mathrm{~K}$
(b) $400 \mathrm{~K}$
(c) $450 \mathrm{~K}$
(d) $600 \mathrm{~K}$ | 1 |
9. A fixed container is fitted with a piston which is attached to a spring of spring constant $k$. The other end of the spring is attached to a rigid wall. Initially the spring is in its natural length and the length of container between the piston and its side wall is $L$.Now an ideal diatomic gas is slowly filled in ... | 1 |
How can I make sure of buying an external hard drives compatible with both Macs and PCs? | 0 |
What is a good logo design? | 0 |
9. The ionisation energy of hydrogen atom is 13.6 eV . What will be the ionisation energy of $\mathrm{He}^{+}$and $\mathrm{Li}^{2+}$ ions?
(54.4 eV, 122.4 eV ) | 1 |
How many people die of gunshot wounds each year? | 0 |
Can the body live off a diet of only fat? | 0 |
When did Cook visit New Zealand and claim the North Island? | 0 |
Will there be jobs for people without college in the future? | 0 |
29. In aqueous solution, chlorine is a stronger oxidizing agent than fluorine. | 1 |
What is a higher study option in environmental studies after doing an MSc in biotechnology? | 0 |
58 (a) If $R=12 \mathrm{~cm}, M=400 \mathrm{~g}$, and $m=50 \mathrm{~g}$ in Fig. 10-19, find the speed of the block after it has descended 50 cm starting from rest. Solve the problem using energy conservation principles. (b) Repeat (a) with $R=5.0 \mathrm{~cm}$. | 1 |
20. For photo-electric effect with incident photon wavelength $\lambda$, the stopping potential is $V_{0}$. Identify the correct variation(s) of $V_{0}$ with $\lambda$ and $\frac{1}{\lambda}$.
(a)
 Benzene
(b) Phenol
(c) ter-butylbenzene
(d) ter-butyl phenyl ether | 1 |
11. If $\sin ^{-1} x+\sin ^{-1} y=\frac{\pi}{2}$ and $\sin 2 x=\cos 2 y$, then
a. $x=\frac{\pi}{8}+\sqrt{\frac{1}{2}-\frac{\pi^{2}}{64}}$.
b $y=\sqrt{\frac{1}{2}-\frac{\pi^{2}}{64}}-\frac{\pi}{12}$
c. $x=\frac{\pi}{12}+\sqrt{\frac{1}{2}-\frac{\pi^{2}}{64}}$
d. $y=\sqrt{\frac{1}{2}-\frac{\pi^{2}}{64}}-\frac{\pi}{8}$ | 1 |
42. A parallel plate capacitor is charged and the charging battery is then disconnected. If the plates of the capacitor are moved farther apart by means of insulating handles
(a) the charge on the capacitor increases
(b) the voltage across the plates increases
(c) the capacitance increases
(d) the electrostatic en... | 1 |
8. The lengths of axes
a. $6,2 \sqrt{6}$
b. $5,2 \sqrt{5}$
c. $4,4 \sqrt{5}$
d. none of these | 1 |
43. If $f(x)=\int_{0}^{\pi} \frac{t \sin t d t}{\sqrt{1+\tan ^{2} x \sin ^{2} t}}$ for $0<x<\frac{\pi}{2}$, then
a. $f\left(0^{+}\right)=-\pi$
b. $f\left(\frac{\pi}{4}\right)=\frac{\pi^{2}}{8}$
c. $f$ is continuous and differentiable in $\left(0, \frac{\pi}{2}\right)$
d. $f$ is continuous but not differentiable in $\le... | 1 |
What is it like to be homeless in Algeria? | 0 |
25. Find the mass of each element in $7 \cdot 84 \mathrm{~g}$ of $\mathrm{FeSO}_4 \cdot\left(\mathrm{NH}_4\right)_2 \mathrm{SO}_4 \cdot 6 \mathrm{H}_2 \mathrm{O}$. What will be the volume of $\mathrm{O}_2$ at NTP in this sample?
(3.136 litres) | 1 |
Why do I yawn when I was bored? | 0 |
Is at least the potential energy of vacuum energy and dark energy infinite? | 0 |
4. The dissociation constant of HCN is $4.8 \times 10^{-10}$. What is the concentration of $\mathrm{H}_3 \mathrm{O}^{+}, \mathrm{OH}$ and HCN in a solution prepared by dissolving 0.16 mole of NaCN in 450 mL of water at $25^{\circ} \mathrm{C}$ ?
$$
\left(\left[\mathrm{OH}^{-}\right]=[\mathrm{HCN}]=2.72 \times 10^{-3} \... | 1 |
Why aren't humans at the top of the food chain? | 0 |
Does YouTube pay per video or channel? | 0 |
What feature of Romanesque architecture was especially prevalent in France? | 0 |
Example 4 Determine graphically the minimum value of the objective function
$$
\begin{equation*}
Z=-50 x+20 y \tag{1}
\end{equation*}
$$
subject to the constraints:
$$
\begin{align*}
& 2 x-y \geq-5 \tag{2}\\
& 3 x+y \geq 3 \tag{3}\\
& 2 x-3 y \leq 12 \tag{4}\\
& x \geq 0, y \geq 0 \tag{5}
\end{align*}
$$ | 1 |
Who theorized that the types of media people use to communicate will offer different possibilities for the shape of society? | 0 |
What are the most technologically advanced countries? How have they advanced? | 0 |
32. Which of the following is true?
(a) $a_{\mathrm{r}}=a^{\mathrm{n}-\mathrm{r}}$
(b) $a_{2 \mathrm{r}}=a_{\mathrm{n}-\mathrm{r}}$
(c) $a_{\mathrm{r}}=a_{2 \mathrm{n}-\mathrm{r}}$
(d) None of these | 1 |
5. Which of the following is not an assumption of the kinetic theory of gases?
(a) Gas particles have negligible volume.
(b) A gas consists of many identical particles which are in continual motion.
(c) At high pressure, gas particles are difficult to compress.
(d) Collisions of gas particles are perfectly elastic. | 1 |
14. Which of the following correctly ranks the cycloalkanes in order of increasing ring strain per methylene?
(A) cyclopropane $<$ cyclobutane $<$ cyclohexane $<$ cycloheptane
(B) cyclohexane $<$ cycloheptane $<$ cyclobutane $<$ cyclopropane
(C) cycloheptane $<$ cyclobutane $<$ cyclopentane $<$ cyclopropane
(D) cyc... | 1 |
What denomination of Christianity is common in the western part of southern Europe? | 0 |
24. A wave represented by the equation $y=a \cos (k x-\omega t)$ is superimposed with another wave to form a stationary wave such that point $x=0$ is a node. The equation for the other wave is
(a) $a \sin (k x+\omega t)$
(b) $-a \cos (k x-\omega t)$
(c) $-a \cos (k x+\omega t)$
(d) $-a \sin (k x-\omega t)$ | 1 |
2. A particle starts from the origin at time $t=0$ and moves along the positive $X$-axis. The graph of velocity with respect to time is shown in figure. What is the position of the particle at time $t=5 \mathrm{~s}$ ?
 and $\mathrm{C}$ (diamond) at $T=298 \mathrm{~K}$ are $\Delta_{f} G^{0}[\mathrm{C}($ graphite $)]=0 \mathrm{~kJ} \mathrm{~mol}^{-1}$ $\Delta_{f} G^{0}[\mathrm{C}($ diamond $)]=2.9 \mathrm{~kJ} \mathrm{~mol}^{-1}$
The standard state mean... | 1 |
Along with Aragon and Castile, what Christian kingdom was present on the Iberian Peninsula? | 0 |
2. Cathode rays are passing through a discharge tube. In the tube, there is
(a) an electric field but no magnetic field
(b) a magnetic field but no electric field
(c) an electric as well as a magnetic field
(d) neither an electric nor a magnetic field. | 1 |
Will there be an error in measuring the error? | 0 |
10. Three sides of a triangle have the equations $L_{i} \equiv y-m_{i} x=0 ; i=1,2$,. Then $L_{1} L_{2}+\lambda L_{2} L_{3}+\mu L_{3} L_{1}=0$, where $\lambda \neq 0, \mu \neq 0$, is the equation of the circumcircle of the triangle if
(a) $1+\lambda+\mu=m_{1} m_{2}+\lambda m_{2} m_{3}+\lambda m_{3} m_{1}$
(b) $m_{1}(1+... | 1 |
19. Coefficient of $x^{11}$ in the expansion of
$\left(1+x^{2}\right)^{4}\left(1+x^{3}\right)^{7}\left(1+x^{4}\right)^{12}$ is
(2014 Adv.)
(a) 1051
(b) 1106
(c) 1113
(d) 1120 | 1 |
Do Chinese people like Mexican and/or Tex-Mex food? | 0 |
Will there be a war between India and Pakistan? | 0 |
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