Question stringlengths 2 3k | label int64 0 1 |
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How does sex feel for a man? | 0 |
2.177. Find the lifetime of a soap bubble of radius $R$ connected with the atmosphere through a capillary of length $l$ and inside radius $r$. The surface tension is $\alpha$, the viscosity coefficient of the gas is $\eta$. | 1 |
12.
The most stable canonical structure among the given structure is :
(A) I
(B) II
(C) III
(D) all are equally stable | 1 |
What are some fun things to do with my dog in Dallas, TX? | 0 |
6. Two particles $A$ and $B$ have a phase difference of $\pi$ when a sine wave passes through the region. (a) $A$ oscillates at half the frequency of $B$. (b) $A$ and $B$ move in opposite directions. (c) $A$ and $B$ must be separated by half of the wavelength. (d) The displacements at $A$ and $B$ have equal magnitudes. | 1 |
What did the soldiers rebel against in the Indian Rebellion of 1857? | 0 |
4. Work done when a force $\mathbf{F}=(\hat{\mathbf{i}}+2 \hat{\mathbf{j}}+3 \hat{\mathbf{k}}) \mathrm{N}$ acting on a particle takes it from the point $\mathbf{r}_{1}=(\hat{\mathbf{i}}+\hat{\mathbf{j}}+\hat{\mathbf{k}})$ to the point $\mathbf{r}_{2}=(\hat{\mathbf{i}}-\hat{\mathbf{j}}+2 \hat{\mathbf{k}})$ is
(a) $-3... | 1 |
What is the easiest way to create a website? | 0 |
4.17 During nuclear explosion, one of the products is ${ }^{90} \mathrm{Sr}$ with half-life of 28.1 years. If $1 \mu \mathrm{~g}$ of ${ }^{90} \mathrm{Sr}$ was absorbed in the bones of a newly born baby instead of calcium, how much of it will remain after 10 years and 60 years if it is not lost metabolically. | 1 |
What have your online dating experiences been like? | 0 |
What does it feel like to be pregnant? | 0 |
21. The values of the real parameter ' $a$ ' so that the given inequation is true $\forall x \in(-1,3)$ :
a. $(-\infty,-3)$
bi $(-3, \infty)$
c. $[9, \infty)$
d. $($ ( $\infty$. 37/4) | 1 |
How good is consumer court? | 0 |
What is the best strategy to improve my skills in competitive programming in 2-3 months? | 0 |
2. The initial speed given to the ball is
(a) $\sqrt{\frac{M g l+2 m g l}{m}}$
(b) $\sqrt{2 g l}$
(c) $\sqrt{\frac{2 M g l+m g l}{m}}$
(d) None of these
Note Attempt the above question after studying chapter of rotational motion. | 1 |
A name shows up on snapchat but I cant add it? | 0 |
34. If $f^{\prime}(x)=\frac{1}{-x+\sqrt{x^{2}+1}}$ and $f(0)=-\frac{1+\sqrt{2}}{2}$, then $f(1)$, is equal to
a. $-\log (\sqrt{2}+1)$
b. 1
c. $1+\sqrt{2}$
d. None of these | 1 |
One form of corruption involves the hiring of family members, which is called what? | 0 |
28. Clemmensen reduction of a ketone is carried out in the presence of :
(a) $\mathrm{LiAlH}_{4}$
(b) $\mathrm{Zn}-\mathrm{Hg}$ with $\mathrm{HCl}$
(c) Glycol with $\mathrm{KOH}$
(d) $\mathrm{H}_{2}$ with Pt as catalyst | 1 |
3. The lines $x+2 y+3=0, x+2 y-7=0$ and $2 x-y-4=0$ are the sides of a square. Equation of the remaining side of the square can be
a. $2 x-y+6=0$
b. $2 x-y+8=0$
c. $2 x-y-10=0$
d. $2 x-y-14=0$ | 1 |
52. The orbital angular momentum quantum number of the state $S_{2}$ is :
(a) 0
(b) 1
(c) 2
(d) 3 | 1 |
42. For each of the following processes, tell whether the entropy of the system increases, decreases or remains constant.
(a) Melting one mole of ice to water at $0^{\circ} \mathrm{C}$
(b) Freezing one mole of water to ice at $0^{\circ} \mathrm{C}$
(c) Freezing one mole of water to ice at $-10^{\circ} \mathrm{C}$
(d) F... | 1 |
Why is Saltwater taffy candy imported in the Philippines? | 0 |
What are the best ways to get sponsorship for Indian college fests? | 0 |
2. If the probability that the product of the outcomes of three rolls of a fair dice is a prime number is $p$, then the value of $1 /(4 p)$ is. | 1 |
Why is the Mona Lisa’s painting so famous? | 0 |
How can I cheer up a gloomy person? | 0 |
Example 7.11 What is the moment of inertia of a rod of mass $M$, length $l$ about an axis perpendicular to it through one end? | 1 |
9. The coefficient of $t^{24}$ in $\left(1+t^{2}\right)^{12}\left(1+t^{12}\right)\left(1+t^{24}\right)$ is
a. ${ }^{12} C_{6}+3$
b. ${ }^{12} C_{6}+1$
c. ${ }^{12} C_{6}$
d. ${ }^{12} C_{6}+2$
(IIT-JEE, 2003) | 1 |
18. $Q+R$ is equal to
a. $2 P+1$
b. $2 P-1$
c. $2 P+2$
d. $2 P-2$ | 1 |
What you think about recent India's surgical strike in Pakistan? | 0 |
What are the best ways to learn C#? | 0 |
When was the British North America Act passed? | 0 |
If you were asked to describe about Chennai in two lines what would it be? | 0 |
What is the best Whirlpool repair center in hyderabad? | 0 |
Ex. 28. A $1.00-\mathrm{g}$ sample of $\mathrm{H}_{2} \mathrm{O}_{2}$ solution containing $x$ per cent $\mathrm{H}_{2} \mathrm{O}_{2}$ by weight requires $x \mathrm{~mL}$ of a $\mathrm{KMnO}_{4}$ solution for complete oxidation under acidic conditions. Calculate the normality of the $\mathrm{KMnO}_{4}$ solution. | 1 |
96. Whe never horses $a, b, c$ race together, their respective probabilities of winning the race are $0.3,0.5$ and 0.2 , respectively. If they race three times the probability that 'the same horse wins all the three races, and the probability that $a, b, c$ each wins one race are, respectively
a. $8 / 50,9 / 50$
b. $16... | 1 |
2 A rectangular solid box of length $0.3 \mathrm{~m}$ is held horizontally, with one of its sides on the edge of a platform of height $5 \mathrm{~m}$. When released, it slips off the table in a very short time $\tau=0.01 \mathrm{~s}$, remaining essentially horizontal. The angle by which it would rotate when it hits the... | 1 |
1. If $A=\left[\begin{array}{ll}\alpha & 0 \\ 1 & 1\end{array}\right]$ and $B=\left[\begin{array}{ll}1 & 0 \\ 5 & 1\end{array}\right]$, then value of $\alpha$ for which $A^{2}=B$ is
a. 1
b. -1
c. 4
d. no real values | 1 |
Where can I watch bollywood movies sereis ''punar vivah''? | 0 |
4.29 Considering x -axis as the internuclear axis which out of the following will not form a sigma bond and why? (a) $1 s$ and $1 s$ (b) $1 s$ and $2 p_{\mathrm{x}}$; (c) $2 p_{\mathrm{y}}$ and $2 p_{\mathrm{y}}$ (d) $1 s$ and $2 s$. | 1 |
63. A curve is such that the mid point of the portion of the tangent intercepted between the point where the tangent is drawn and the point where the tangent meets the $y$-axis lies on the line $y=x$. If the curve passes through $(1,0)$, then the curve is
a. $2 y=x^{2}-x$
b. $y=x^{2}-x$
c. $y=x-x^{2}$
d. $y=2\left(x-x^... | 1 |
19. Which one of the following complexes shows optical isomerism?
[Main 2016]
(a) trans $\left[\mathrm{Co}(\mathrm{en})_{2} \mathrm{Cl}_{2}\right] \mathrm{Cl}$
(b) $\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right] \mathrm{Cl}$
(c) $\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{3} \mathrm{Cl... | 1 |
33. To produce characteristic $\mathrm{X}$-rays using a tungsten target in an $\mathrm{X}$-ray generator, the accelerating voltage should be greater than ____________ V and the energy of the characteristic radiation is ____________ eV. (The binding energy of the innermost electron in tungsten is $40 \mathrm{keV}$ ). | 1 |
11. In the figure shown a coil of single turn is wound on a sphere of radius $r$ and mass $m$. The plane of the coil is parallel to the inclined plane and lies in the equatorial plane of the sphere. If sphere is in rotational equilibrium the value of $B$ is (current in the coil is $i$ ):
(a) $\frac{m g}{\pi i r}$
(b) $... | 1 |
3. In image formation from spherical mirrors, only paraxial rays are considered because they
(a) are easy to handle geometrically
(b) contain most of the intensity of the incident light
(c) form nearly a point image of a point source
(d) show minimum dispersion effect. | 1 |
What Russian word is used for comics? | 0 |
Ex. 8. The heats of combustion of ammonia and hydrogen are 9.06 and 68.9 kcal respectively. Calculate the heat of formation of ammonia. | 1 |
8. A small block of mass m is kept on a rough inclined
surface of inclination θ fixed in an elevator. The elevator
goes up with a uniform velocity v and the block does not
slide on the wedge. The work done by the force of friction
on the block in time t will be
(a) zero (b) mgvt cos 2
θ
(c) mgvt sin 2θ (d) mgvt sin 2θ. | 1 |
- Example 24.13 A uniform electric field $E_{0}$ is directed along positive $y$-direction. Find the change in electric potential energy of a positive test charge $q_{0}$ when it is displaced in this field from $y_{i}=a$ to $y_{f}=2 a$ along the $y$-axis. | 1 |
42. The value of the reaction quotient before any reaction occurs is
(a) $\infty$
(b) -1
(c) 0
(d) 1 | 1 |
If sweat doesn't come does it helps to reduce weight loss? | 0 |
The New Delhi town plan was chosen primarily to symbolize what? | 0 |
7. A charge $Q$ is distributed over three concentric spherical shells of radii $a, b, c(a<b<c)$ such that their surface charge densities are equal to one another.
The total potential at a point at distance $r$ from their common centre, where $r<a$ would be
(a) $\frac{Q\left(a^{2}+b^{2}+c^{2}\right)}{4 \pi \varepsilo... | 1 |
2. How many distinct terminal alkynes exist with a molecular formula of $\mathrm{C}_{6} \mathrm{H}_{10}$ ?
(A) 1
(B) 2
(C) 3
(D) 4
(E) 5 | 1 |
14. A tightly wound long solenoid has $n$ turns per unit length, radius $r$ and carries a current $i$. A particle having charge $q$ and mass $m$ is projected from a point on the axis in the direction perpendicular to the axis. The maximum speed for which particle does not strike the solenoid will be
(a) $\frac{\mu_{0} ... | 1 |
How do I register desired web address? | 0 |
14. A galvanometer having a coil resistance of $100 \Omega$ gives a full scale deflection when a current of $1 \mathrm{~mA}$ is passed through it. The value of the resistance which can convert this galvanometer into ammeter giving a full scale deflection for a current of $10 \mathrm{~A}$, is
(2016 Main)
(a) $0.01 \Ome... | 1 |
How does it feel for a guy when he inserts his genitals in vagina? | 0 |
What is one of the activities Telugu Academy is credited with encouraging? | 0 |
In what century did Europeans become aware of gunpowder? | 0 |
3. The constants $a$ and $b$ for the pair silver-lead are $2.50 \mu \mathrm{V}^{\circ} \mathrm{C}^{-1}$ and $0.012 \mu \mathrm{V}^{\circ} \mathrm{C}^{-2}$ respectively. For a silver-lead thermocouple with colder junction at $0^{\circ} \mathrm{C}$, (a) there will be no neutral temperature
(b) there will be no inversion... | 1 |
18. $\mathrm{Mn}_{2}(\mathrm{CO})_{10}$ is an organometallic compound due to the presence of :
[Main Jan. 12, $2019(I)]$
(a) $\mathrm{Mn}-\mathrm{C}$ bond
(b) Mn-Mn bond
(c) Mn-O bond
(d) $\mathrm{C}-\mathrm{O}$ bond | 1 |
12. $\lim _{n \rightarrow \infty} \frac{1}{1+n \sin ^2 n x}$ is equal to
a. -1
b. 0
c. 1
d $\infty$ | 1 |
Example 19.8 A point source of sound emits a constant power with intensity inversely proportional to the square of the distance from the source. By how many decibels does the sound intensity level drops when you move from point $P_{1}$ to $P_{2}$ ? Distance of $P_{2}$ from the source is two times the distance of source... | 1 |
Can I use padhopadhao.com for getting tuitions. Is it genuine or fake? | 0 |
15. ($1+\cos \frac{\pi}{8}) (\quad 1+\cos \frac{3 \pi}{8}) (\quad 1+\cos \frac{5 \pi}{8} )(\quad 1+\cos \frac{7 \pi}{8}) \quad$ is equal to
(a) $\frac{1}{2}$
(b) $\cos \frac{\pi}{8}$
(c) $\frac{1}{8}$
(d) $\frac{1+\sqrt{2}}{2 \sqrt{2}}$ | 1 |
Did anyone find his/her love in a cab while sharing a ride? | 0 |
6. The number of integral values of $m$ for which the quadratic expression, $(1+2 m) x^{2}-2(1+3 m)$ $x+4(1+m), x \in R$, is always positive, is
(a) 6
(b) 8
(c) 7
(d) 3 | 1 |
9. If the length of the filament of a heater is reduced by $10 \%$, the power of the heater will
(a) increase by about $9 \%$
(b) increase by about $11 \%$
(c) increase by about $19 \%$
(d) decrease by about $10 \%$ | 1 |
When did England and the Netherlands make peace? | 0 |
4. 1-methyl ethylene oxide when treated with an excess of $\mathrm{HBr}$ produces:
(IIT 1995) | 1 |
40. If $|z-1| \leq 2$ and $\left|\omega z-1-\omega^{2}\right|=a$ (where $\omega$ is a cube root of unity) then complete set of values of $a$ is
a. $0 \leq a \leq 2$
b. $\frac{1}{2} \leq a \leq \frac{\sqrt{3}}{2}$
c. $\frac{\sqrt{3}}{2}-\frac{1}{2} \leq a \leq \frac{1}{2}+\frac{\sqrt{3}}{2}$
d. $0 \leq a \leq 4$ | 1 |
In what year did Indira Gandhi International Airport earn an award for being forth best airport in the world in the 15-25 million category? | 0 |
Why do people ask questions here in Quora instead of just googling? | 0 |
6. If ${ }^{n-1} C_{r}=\left(k^{2}-3\right){ }^{n} C_{r+1}$, then $k$ belongs to
(2004, 1M)
(a) $(-\infty,-2]$
(b) $[2, \infty)$
(c) $[-\sqrt{3}, \sqrt{3}]$
(d) $(\sqrt{3}, 2]$ | 1 |
Do special Tatkal trains run in time? | 0 |
What are some common household acids? | 0 |
2. The smallest positive root of the equation $\tan x-x=0$ lies in
a. $\left(0, \frac{\pi}{2}\right)$
b. $\left(\frac{\pi}{2}, \pi\right)$
c. $\left(\pi, \frac{3 \pi}{2}\right)$
d. $\left(\frac{3 \pi}{2}, 2 \pi\right)$
e. None of these | 1 |
What did the Black Panther Party achieve? | 0 |
5. The electric potential varies in space according to the relation $V=3 x+4 y$. A particle of mass $10 \mathrm{~kg}$ starts from rest from point $(2,3.2) \mathrm{m}$ under the influence of this field. Find the velocity of the particle when it crosses the $x$-axis. The charge on the particle is $+1 \mu \mathrm{C}$. Ass... | 1 |
38. The half-life of a radioactive isotope is 1.5 hours. The mass of it that remains undecayed after 6 hours is (if the initial mass of the isotope was 32 g )
(a) 32 g
(b) 16 g
(c) $4 g$
(d) 2 g | 1 |
In what year did the Crusades begin? | 0 |
32. The number of terms common between the series $1+2+4+$ $8+\ldots$ to 100 terms and $1+4+7+10+\ldots$ to 100 terms is
a. 6
b. 4
c. 5
d. none of these | 1 |
11. If a pair of variable straight lines $x^{2}+4 y^{2}+\alpha x y=0$ (where $\alpha$ is a real parameter) cut the ellipse $x^{2}+4 y^{2}=4$ at two points $A$ and $B$, then the locus of the point of intersection of tangents at $A$ and $B$ is
(a) $x-2 y=0$
(b) $2 x-y=0$
(c) $x+2 y=0$
(d) $2 x+y=0$ | 1 |
What system was examined to develop the neurobiological explanation of human emotion? | 0 |
Is it advisable to opt for public administration as an optional for upsc 2016? | 0 |
8. A hoop and a solid cylinder of same mass and radius are made of a permanent magnetic material with their magnetic moment parallel to their respective axes. But the magnetic moment of hoop is twice of solid cylinder. They are placed in a uniform magnetic field in such a manner that their magnetic moments make a small... | 1 |
Example 3.76 Find the sum to infinity of the series $1-3 x+5 x^{2}+7 x^{3}+\cdots \infty$ when $|x|<1$. | 1 |
9. A line $l$ passing through the origin is perpendicular to the lines
$l_{1}:(3+t) \hat{\mathbf{i}}+(-1+2 t) \hat{\mathbf{j}}+(4+2 t) \hat{\mathbf{k}},-\infty<t<\infty$
$l_{2}:(3+2 s) \hat{\mathbf{i}}+(3+2 s) \hat{\mathbf{j}}+(2+s) \hat{\mathbf{k}},-\infty<s<\infty$
Then, the coordinate(s) of the point(s) on $l_{2}... | 1 |
Reality of Indian, when you get overpowered while showing humanity? | 0 |
Do tall people feel room temperature height differences more intensively? | 0 |
32. Which pair of compounds is expected to show similar colour in aqueous medium?
(a) $\mathrm{FeCl}_{2}$ and $\mathrm{CuCl}_{2}$
(b) $\mathrm{VOCl}_{2}$ and $\mathrm{CuCl}_{2}$
(c) $\mathrm{VOCl}_{2}$ and $\mathrm{FeCl}_{2}$
(d) $\mathrm{FeCl}_{2}$ and $\mathrm{MnCl}_{2}$ | 1 |
Example 1.146 Find the values of $a$ for which the equation $\sin ^{4} x+a \sin ^{2} x+1=0$ will have a solution. | 1 |
21. A wheel of radius $20 \mathrm{~cm}$ is pushed to move it on a rough horizontal surface. It is found to move through a distance of $60 \mathrm{~cm}$ on the road during the time it completes one revolution about the centre. Assume that the linear and the angular accelerations are uniform. The frictional force acting ... | 1 |
In how many days we get fair skin by alovera gel and lemon juice? | 0 |
26. When a small amount of $\mathrm{KMnO}_{4}$ is added to concentrated $\mathrm{H}_{2} \mathrm{SO}_{4}$, a green oily compound is obtained which is highly explosive in nature. Compound may be :
(a) $\mathrm{MnSO}_{4}$
(b) $\mathrm{Mn}_{2} \mathrm{O}_{7}$
(c) $\mathrm{MnO}_{2}$
(d) $\mathrm{Mn}_{2} \mathrm{O}_{3}... | 1 |
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