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16. A particle of mass $m$ and charge $q$ is fastened to one end of a string of length $l$. The other end of the string is fixed to the point $O$. The whole system lies on a frictionless horizontal plane. Initially, the mass is at rest at $A$. A uniform electric field in the direction shown is then switched on. Then,
... | 1 |
Do I need to take an IT certification? I'm a senior CS student? | 0 |
25. For refraction through a small angled prism, the angle of minimum deviation
(a) increases with increase in refractive index of a prism
(b) will be $2 \delta$ for a ray of refractive index 2.4 if it is $\delta$ for a ray of refractive index 1.2
(c) is directly proportional to the angle of the prism
(d) will decr... | 1 |
What is a comic that is as long as a book called? | 0 |
What are the most mindblowing facts about Bihar and Bihari people? | 0 |
What is the Christian God called? | 0 |
How do I unlock my Snapchat account? | 0 |
Looking for second hand Innova car in Mumbai, if any one has any information? Please inform me. | 0 |
Why is a diploma equivalent to a graduation? | 0 |
14. Regarding the given circuit, the correct statement is
(a) $\left(V_{a}-V_{b}\right)$ is increasing with time
(b) $\left(V_{a}-V_{b}\right)$ is decreasing with time
(c) $\left(V_{a}-V_{b}\right)=10 \mathrm{~V}$
(d) $\left(V_{a}-V_{b}\right)=$ zero
 $\vec{a}+\frac{(\vec{q}-\vec{a} \cdot \vec{n})}{|\vec{n}|}$
(b) $\vec{a}+2\left(\frac{(\vec{q}-\vec{a} \cdot \vec{n})}{|\vec{n}|^{2}}\right) \vec{n}$
(c) $\vec{a}+\frac{2(\vec{q}+\vec{a} \cdot \vec{n})}{|\vec{n}|} \vec{n}$
(d) None o... | 1 |
1.109. A particle moves in a plane under the action of a force which is always perpendicular to the particle's velocity and depends on a distance to a certain point on the plane as $1 / r^{n}$, where $n$ is a constant. At what value of $n$ will the motion of the particle along the circle be steady? | 1 |
What is the national average for literacy in India? | 0 |
17. For a reversible reaction if the concentrations of the reactants are doubled, the equilibrium constant will be
(a) doubled
(b) halved
(c) one-fourth
(d) the same | 1 |
Which city is better to live in: Delhi or Chennai (Madras)? | 0 |
Does someone receive notification if I like and then unlike a photo on Facebook? | 0 |
1. Discuss the extremum of $f(x)=2 x^{3}-3 x^{2}-12 x+5$ for $x$ $\in[-2,4]$ and find the range of $f(x)$ for the given interval. | 1 |
Do dravidian provinces have lingua franca? | 0 |
Is Barack Obama a Muslim? | 0 |
15. Two coherent point sources $S_{1}$ and $S_{2}$ are separated by a small distance $d$ as shown. The fringes obtained on the screen will be
(a) points
(b) straight lines
(c) semi-circl... | 1 |
7. The anodic half-cell of lead-acid battery is recharged using electricity of 0.05 Faraday. The amount of $\mathrm{PbSO}_{4}$ electrolyzed in $\mathrm{g}$ during the process is : (Molar mass of $\left.\mathrm{PbSO}_{4}=303 \mathrm{~g} \mathrm{~mol}^{-1}\right)$
(a) 22.8
(b) 15.2
(c) 7.6
(d) 11.4 | 1 |
Why are academic reports or submissions usually required to be in serif fonts such as Times New Roman? | 0 |
19. An isolated particle of mass $m$ is moving in horizontal plane $(x-y)$, along the $X$-axis, at a certain height above the ground. It suddenly explodes into two fragment of masses $m / 4$ and $3 \mathrm{~m} / 4$. An instant later, the smaller fragment is at $y=+15 \mathrm{~cm}$. The larger fragment at this instant i... | 1 |
3. If there of the six vertices of a regular hexagon are chosen at random, then the probability that the triangle formed with these chosen vertices is equilateral is
(a) $\frac{1}{10}$
(b) $\frac{1}{5}$
(c) $\frac{3}{10}$
(d) $\frac{3}{20}$
(2019 Main, 12 April I) | 1 |
16. A projectile of mass $m$ is fired with a velocity $v$ from point $P$ at an angle $45^{\circ}$. Neglecting air resistance, the magnitude of the change in momentum leaving the point $P$ and arriving at $Q$ is
 $200 \mathrm{~cm}$
(b) $202 \mathrm{~cm}$
(c) $203 \mathrm{~cm}$
(d) $204 \mathrm{~cm}$ | 1 |
How will demonetization affect India? | 0 |
How can a Quora answer be seen if it’s the 1000th answer to a question? Keep scrolling to the bottom? | 0 |
- 8.17 Consider the reactions:
(a) $\mathrm{H}_3 \mathrm{PO}_2(\mathrm{aq})+4 \mathrm{AgNO}_3(\mathrm{aq})+2 \mathrm{H}_2 \mathrm{O}(\mathrm{l}) \rightarrow \mathrm{H}_3 \mathrm{PO}_4(\mathrm{aq})+4 \mathrm{Ag}(\mathrm{s})+4 \mathrm{HNO}_3(\mathrm{aq})$
(b) $\mathrm{H}_3 \mathrm{PO}_2(\mathrm{aq})+2 \mathrm{CuSO}_4(\... | 1 |
What are the ways to earn from wild life or natural photography? | 0 |
How can I prevent a memory foam mattress from sinking? | 0 |
What is the fascination with Nekozawa cosplay? Why is it popular? | 0 |
Is homeschooling an effective way to educate your children? | 0 |
86. If the normals at points ' $t_{1}$ ' and ' $t_{2}$ ' meet on the parabola, then
a. $t_{1} t_{2}=-1$
b. $t_{2}=-t_{1}-\frac{2}{t_{1}}$
c. $t_{1} t_{2}=2$
d. none of these | 1 |
Why is the right to vote not a fundamental right in India? | 0 |
5. If $f(x)=x(\sqrt{x}+\sqrt{(x+1)}$, then
(1985, 2M)
(a) $f(x)$ is continuous but not differentiable at $x=0$
(b) $f(x)$ is differentiable at $x=0$
(c) $f(x)$ is not differentiable at $x=0$
(d) None of the above | 1 |
-1 In Fig. 30-33, a circular loop of wire 10 cm in diameter (seen edge-on) is placed with its normal $\vec{N}$ at an angle $\theta=30^{\circ}$ with the direction of a uniform magnetic field $\vec{B}$ of magnitude 0.50 T . The loop is then rotated such that $\vec{N}$ rotates in a cone about the field direction at the ra... | 1 |
What can I do to earn money lot without working hard? | 0 |
Animals in what group are thought to form a monophyletic group? | 0 |
How many barrels per day is currently being extracted from the Barmer region? | 0 |
2011-12 Premier League Season: Who is the best midfield player in the premiership? | 0 |
49. If $\sin ^{-1}\left(\frac{2 a}{1+a^{2}}\right)+\sin ^{-1}\left(\frac{2 b}{1+b^{2}}\right)=2 \tan ^{-1} x$, then $x$ is equal to $[a, b \in(0,1)]$
a. $\frac{a-b}{1+a b}$
b $\frac{b}{1+a b}$
c. $\frac{b}{1-a b}$
d. $\frac{a+b}{1-a b}$ | 1 |
How come Trump won? | 0 |
Example 8 The second, third and fourth terms in the binomial expansion $(x+a)^{n}$ are 240, 720 and 1080, respectively. Find $x, a$ and $n$. | 1 |
Major cities like Jakarta and Johannesburg rank below New Delhi in what key statistic? | 0 |
5.17 A nucleus is at rest in the laboratory frame of reference. Show that if it disintegrates into two smaller nuclei the products must move in opposite directions. | 1 |
42. If $|2 z-1|=|z-2|$ and $z_{1}, z_{2}, z_{3}$ are complex numbers such that $\left|z_{1}-\alpha\right|<\alpha,\left|z_{2}-\beta\right|<\beta$, then $\left|\frac{z_{1}+z_{2}}{\alpha+\beta}\right|$
a. $<|z|$
b. $<2|z|$
c. $>|z|$
d. $>2|z|$ | 1 |
How do I prepare for IB math HL? | 0 |
What do some non-theists view God as? | 0 |
How can we improve our awareness? | 0 |
24. Give reason of the following :
[1998 - 3 Marks]
Normally, benzene gives electrophilic substitution reaction rather than electrophilic addition reaction although it has double bonds. | 1 |
Along with light cavalry, what military arm declined in importance during the Early Middle Ages? | 0 |
How long am I contagious when I have the flu or a cold? | 0 |
When is Sherlock Season 4 airing in India? | 0 |
(a) What are the angular frequency, the frequency, and the period of the resulting motion? | 1 |
22. Which of the following contains the greatest number of oxygen atoms?
(a) 1 g of O
(b) 1 g of $\mathrm{O}_2$
(c) 1 g of $\mathrm{O}_3$
(d) all have the same number of atoms | 1 |
The Jantar Mantar consists of how many architectural astronomy instruments? | 0 |
3.72. A non-polar molecule with polarizability $\beta$ is located at a great distance $l$ from a polar molecule with electric moment $p$. Find the magnitude of the interaction force between the molecules if the vector $p$ is oriented along a straight line passing through both molecules. | 1 |
How do I romance my girlfriend? | 0 |
54. Given
$$
\begin{aligned}
& 2 \mathrm{Fe}_{2} \mathrm{O}_{3}(\mathrm{~s}) \rightarrow 4 \mathrm{Fe}(\mathrm{~s})+3 \mathrm{O}_{2}(\mathrm{~g}) ; \Delta \mathrm{G}^{\circ}=-1487 \mathrm{~kJ} \mathrm{~mol}^{-1} \\
& 2 \mathrm{CO}(\mathrm{~g})+\mathrm{O}_{2}(\mathrm{~g}) \rightarrow 2 \mathrm{CO}_{2}(\mathrm{~g}) ; \D... | 1 |
Was the third volume of the first edition deemed sufficient? | 0 |
What should I gift my boyfriend for Christmas? | 0 |
8. A large open tank has two holes in the wall. One is a square hole of side $L$ at a depth $y$ from the top and the other is a circular hole of radius $R$ at a depth $4 y$ from the top. When the tank is completely filled with water, the quantities of water flowing out per second from both holes are the same. Then, $R$... | 1 |
Where does the name Ebola come from? | 0 |
4. The internal energy of a monatomic ideal gas is $1.5 n R T$. One mole of helium is kept in a cylinder of cross section $8.5 \mathrm{~cm}^{2}$. The cylinder is closed by a light frictionless piston. The gas is heated slowly in a process during which a total of $42 \mathrm{~J}$ heat is given to the gas. If the tempera... | 1 |
11. Which of the following statements is not true about sucrose?
[Main April 9, 2019 (I)]
(a) It is a non reducing sugar
(b) The glycosidic linkage is present between $C_{1}$ of $\alpha$-glucose and $C_{1}$ of $\beta$ fructose
(c) It is also named as invert sugar
(d) On hydrolysis, it produces glucose and fructose | 1 |
Can I be a self-taught computer scientist? | 0 |
Are chatbots going to take off? | 0 |
35. If vectors $\vec{A}=2 \hat{i}+3 \hat{j}+4 \hat{k}, \vec{B}=\hat{i}+\hat{j}+5 \hat{k}$ and $\vec{C}$ form a left-handed system, then $\vec{C}$ is
a. $11 \hat{i}-6 \hat{j}-\hat{k}$
b. $-11 \hat{i}+6 \hat{j}+\hat{k}$
c. $11 \hat{i}-6 \hat{j}+\hat{k}$
d. $-11 \hat{i}+6 \hat{j}-\hat{k}$ | 1 |
4. Which of these would you expect to have significant resonance energy?
(A) I
(B) II
(C) III
(D) All of the above
(E) None of the above
 | 1 |
Example 7.9 How do you account for the reducing behaviour of $\mathrm{H}_3 \mathrm{PO}_2$ on the basis of its structure? | 1 |
Why is Saltwater taffy candy imported in South Korea? | 0 |
9. A $2 \mathrm{~m}$ long wire of resistance $4 \Omega$ and diameter $0.64 \mathrm{~mm}$ is coated with plastic insulation of thickness $0.66 \mathrm{~mm}$. A current of 5 A flows through the wire. Find the temperature difference across the insulation in the steady state. Thermal conductivity of plastic is $0.16 \times... | 1 |
48. ............. phosphorus is reactive because of its highly strained tetrahedral structure. | 1 |
5. The bond order and the magnetic characteristics of $\mathrm{CN}^{-}$ are:
(a) $2 \frac{1}{2}$, diamagnetic
(b) 3, diamagnetic
(c) 3, paramagnetic
(d) $2 \frac{1}{2}$, paramagnetic | 1 |
How long did the Indian influence date back to for the Malay-speaking world? | 0 |
How do you teach somebody with a learning disability? | 0 |
What are aims and objectives ? | 0 |
72. A soluble compound of a poisonous element $M$, when heated with $\mathrm{Zn} / \mathrm{H}_{2} \mathrm{SO}_{4}$, gives a colourless and extremely poisonous gaseous compound $N$, which on passing through a heated tube gives a silvery mirror of element $M$. Identify $M$ and $N$. | 1 |
4. Range of $y=f(x)$ is
a. $[-2,1]$
b. $[-1,4]$
c. $[0,2]$
d. $[2,3]$ | 1 |
In what year did the Liberals win huge in the general election? | 0 |
What is wrong with Samsung's Note 7 battery? | 0 |
41. In the Young's double slit experiment, the interference pattern is found to have an intensity ratio between the bright and dark fringes as 9 . This implies that
(a) the intensities at the screen due to the two slits are 5 units and 4 units respectively
(b) the intensities at the screen due to the two slits are ... | 1 |
I'm very funny and crazy with girls but when a boy talk to me I become very shy and I start sweating! What should I do? | 0 |
What would happen if the USA went to war with Mexico? | 0 |
11. $\int_{0}^{x} f(t) d t=x+\int_{x}^{1} t f(t) d t$, then the value of $f(1)$ is
(a) $\frac{1}{2}$
(b) 0
(c) 1
(d) $-\frac{1}{2}$ | 1 |
The opisthokonts also include what other organisms? | 0 |
What are the best brands for Punching bags in India? | 0 |
How do Laravel migration works? | 0 |
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