List of practice Questions

A radioactive element $ _{90}{{X}^{238}} $ decays into $ _{83}{{\Upsilon }^{222}}. $ The number of P-particle emitted are:

A body is thrown with a velocity of 9.8 m/s making an angle of $ 30{}^\circ $ with the horizontal. It will hit the ground after a time:

220 V, 50 Hz AC source is connected to an inductance of 0.2 H and a resistance of 20 ohm in series. What is the current in the circuit:

A small satellite is revolving near earths surface. Its orbital velocity will be nearly:

The kinetic energy $k$ of a particle moving along a circle of radius $R$ depends on the distance covered. It is given as $KE = as ^{2}$, where a is a constant. The force acting on the particle is

According to Newton, the viscous force acting between liquid layers of area A and velocity gradient $ \frac{\Delta \upsilon }{\Delta z} $ is given by $ F=\eta A\frac{\Delta \upsilon }{\Delta z} $ where $ \eta $ is a constant called coefficient of viscosity. The dimension of $ \eta $ are:

The maximum and minimum distance of a comet from the sun are $ 8\times 10^{12}m$ and $ 1.6\times 10^{12}m$ . If its velocity when nearest to the sun is 60 m/s, what will be its velocity in m/s when farthest?

For a gas $ \frac{R}{{{C}_{\upsilon }}}=0.67. $ This gas is made up of molecules which are:

Two equal negative charges $-q$ each are fixed at points $(0, -a)$ and $(0,a)$ on $y-axis$. A positive Charge $Q$ is released from rest at the point $(2a, 0)$ on the $x-axis$. The charge $Q$ will

The core of a transformer is laminated to reduce

An aluminium ring B faces an electromagnet A.The current I through A can be altered

Which one among the following shows particle nature of light?

Which one of the following is correctly matched?

If the tension and diameter of a sonometer wire of fundamental frequency n is doubled and density is halved then its fundamental frequency will become

A child is sitting on a swing. Its minimum and maximum heights from the ground 0.75 m and 2 m respectively, its maximum speed will be

The relative permeability is represented by $\mu_r$ and the susceptibility by $\varkappa$ for a magnetic substance. Then for a paramagnetic substance

Which of the following is the main production the photorespiration of $ {{C}_{3}} $ plants?

For all $x\,\in\,(0,1)$

Let $f(x) = \begin{cases} |x|, & \quad \text{for}\, 0 < | x | \le 2 \\ 1, & \quad \text{for} \, x = 0 \end{cases}$ then at x = 0, f has

Choose the word from the four alternatives (1), (2), (3) and (4) that is most nearly similar in meaning to the word given in CAPITAL letters.
CLOUT

Choose the word from the four alternatives (1), (2), (3) and (4) that is most nearly similar in meaning to the word given in CAPITAL letters.
FOMENT

Choose the word from the four altermatives (1), (2), (3) and (4) that is most nearly opposite in meaning to the word given in CAPITAL letters.
SEDENTARY

Choose the word from the four altermatives (1), (2), (3) and (4) that is most nearly opposite in meaning to the word given in CAPITAL letters.
COMPASSIONATE

Choose the word from the four altermatives (1), (2), (3) and (4) that is most nearly opposite in meaning to the word given in CAPITAL letters.
RUDIMENTARY

It will take some time for many South Koreans to ____________ the conflicting images of North Korea, let alone to ____________ what to make of their northern cousins.