List of top Physics Questions asked in AP EAPCET

A car of mass 1500 kg is moving with 20 ms$^{-1}$ velocity. If the breaks are applied it comes to rest in 5 seconds, then the retarding force is

A body is made to move up along an inclined plane of inclination $30^\circ$ and the coefficient of friction is 0.5, then its retardation is:

A machine gun fires 300 bullets per minute each with a velocity of 500 ms$^{-1}$. If the mass of each bullet is 4 g, the power of the machine gun is:

A body falls freely from a height of 100 m on to the ground and rebounds to a maximum height of 36 m after collision. The coefficient of restitution between the ground and the body is:

A force of $ (2\hat{i} + 3\hat{j} + 4\hat{k}) \, \text{N} $ acts on a particle whose position vector with respect to the origin of the coordinate system is $ (6\hat{i} + b\hat{j} + 12\hat{k}) \, \text{m} $. If the angular momentum of the body is constant, the value of $ b $ is:

The range of a projectile of weight $ W $ is $ R $. The average torque on the projectile between the initial and final positions $ P $ and $ Q $ about the point of projection is:

Two springs A and B fixed at the top and are stretched by 8 cm and 16 cm respectively, when loads of 20 N and 10 N are suspended at the lower ends. The ratio of the spring constants of the springs A and B is:

The amplitudes of a damped harmonic oscillator after 2 and 4 seconds are $ A_1 $ and $ A_2 $ respectively. If the initial amplitude of the oscillator is $ A_0 $, then

The value of acceleration due to gravity at a height of $ 4R_E $ from surface of earth is \[ R_E \text{ is radius of earth and acceleration due to gravity on the surface of the earth = 10 ms}^{-2} \]

The maximum possible height of a mountain on Earth is approximately.

A person of height 1.65 m is standing upright. The additional external force required by blood vessel of length 1 cm, diameter 1 mm at feet to balance the pressure compared to similar blood vessel in head is
(Density of blood = $1.1 \times 10^3 \, \text{kg m}^{-3}, \, g = 10 \, \text{ms}^{-2}$)

The specific heat capacity of a copper block of mass $ M $ is $ s $. If the mass of the copper block is doubled, the specific heat capacity will be:

2 moles of a monatomic gas requires heat energy $ Q $ to be heated from 30°C to 40°C at constant volume. The heat energy required to raise the temperature of 4 moles of a diatomic gas from 28°C to 33°C at constant volume is:

A block of steel of mass 2 kg slides down a rough inclined plane of inclination of $ \sin^{-1} \left( \frac{3}{5} \right) $ at a constant speed. The temperature of the block as it slides through 80 cm, assuming that the mechanical energy lost is used to increase the temperature of the block is nearly:

Isothermal bulk modulus of a gas at a pressure $ P $ is:

A vessel of volume 10 liters is filled with $ H_2 $ gas. The total average translational kinetic energy of its molecules is $ 4.5 \times 10^5 \, \text{J} $. The pressure of hydrogen in the vessel is:

Small amplitude progressive wave in a stretched string has a speed of $ 100 \, \text{cm/s} $ and frequency $ 100 \, \text{Hz} $. The phase difference between two points 2.75 cm apart on the string, in radians, is:

Blue colour of the sky is due to

The property of light which cannot be explained by Huygen's construction of wavefront is:

The electric field $ \mathbf{E} $ in a region is given by $ \mathbf{E} = 3\hat{i} + 5\hat{j} $. The net electric flux through a square area of side 2 m parallel to y - z plane is

Two thin conducting concentric shells of radii $ R_1 $ and $ R_2 $ are shown in the figure. The inner shell carries a charge $ +Q $ and the outer shell is neutral. Then the correct statement is:

Two square shaped metal plates of side 1 m, kept 0.01 m apart in air form a parallel plate capacitor. It is connected to a battery of 500 V. The plates of the capacitor are then immersed in an insulating oil by lowering the plates vertically with a speed of 0.001 ms$^{-1}$. If the dielectric constant of the oil is 11, then current drawn from the battery during this process is

When a resistance $ R_1 $ is connected across a cell, the current is $ I_1 $ and if the resistance $ R_1 $ is replaced by $ R_2 $, the current is $ I_2 $. Then the internal resistance of the cell is:

Charge passing through a conductor of cross-section 0.3 m$^2$ is given by $ q = (3t^3 + 5t + 2)$ $\text{C} \, \text{where} \, t \, \text{is in seconds}$ The drift velocity at $t = 2 \, \text{s is} \, \text{(Concentration of electrons in the conductor} = 2 \times 10^{25} \, \text{m}^{-3}) $

A magnetic field intensity at the centre of a circular wire of radius 0.1 m carrying a current 0.2 A is: