List of top Questions asked in AP EAPCET- 2023

The number of rotational degrees of freedom of a diatomic molecule is
The angular momentum of a solid cylinder rotating about its geometric axis with angular speed 40 rad s\(^{-1} \) is 2 kg m\(^2 \) s\(^{-1} \). If the radius of the cylinder is 10 cm, the mass of the cylinder is
The radius of the path of a charged particle of mass \( m \) and charge \( q \) moving with a speed \( v \) in a magnetic field \( B \) is given by:
A spherical ball of volume 2000 cm\(^3\) is subjected to a hydraulic pressure of 15 atm. If the change in volume is \( 5 \times 10^{-2} \) cm\(^3\), the bulk modulus of the material of the spherical ball is:

In the circuit given below, the charge on the capacitor $ C_1 $ is

The time period of a simple pendulum on the surface of the Earth is \( T \). At what height above the surface will the time period become \( 2T \)?
(Radius of Earth = \( 6400 \, \text{km} \))
The sum of the magnitudes of two vectors acting at a point is 18 and the magnitude of their resultant is 12. If the resultant is at \( 90^\circ \) with the vector of smaller magnitude, then the magnitudes of the vectors are
A large open top water tank is completely filled with water. A small hole of diameter 4 mm is made 10 m below the water level. The flow rate of water through the hole is:
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:
A wire is first bent in the form of a circular coil of 5 turns and the same wire is then bent in the form of another circular coil of 10 turns. If same current is passed in both the coils, then the ratio of the magnetic fields at their centres is
The change in internal energy when a gas is taken through a cyclic process completely once is
In a medium in which a transverse progressive wave is travelling, the phase difference between two points with a separation of 1.25 cm is $ \frac{\pi}{4} $. If the frequency of the wave is 1000 Hz, the wave velocity will be
A cyclotron’s oscillator frequency is 20 MHz. The operating magnetic field for accelerating protons is
(Charge of proton = \( 1.6 \times 10^{-19} \) C, mass of proton = \( 1.67 \times 10^{-27} \) kg)
Beats are produced by frequencies \( \nu_1 \) and \( \nu_2 \) (\( \nu_1>\nu_2 \)). The duration of time between two successive minima is
The equation of motion of a particle executing simple harmonic motion is given by $ x = 0.6 \sin (3t + 0.8 \cos 5t) $, where $ x $ is in meters and $ t $ is in seconds. The maximum acceleration of the particle in m/s² is
If a body has a potential energy of \( (4x^2 + 2x) \, \text{J} \) at height 2 m, then the force acting on it is:
An object of mass 50 kg is in a lift moving up with an acceleration of 5 ms$^{-2}$. Then the apparent weight of the object and its direction is (Acceleration due to gravity = 10 ms$^{-2}$)
In Young’s double slit experiment, if the distance between the two slits is decreased by 20% and the distance between the slits and the screen is increased by 20%, then the percentage increase in the fringe width is

A torch bulb rated as 4.5 W, 1.5 V is connected in the circuit as shown in the figure. If the bulb glows with maximum intensity, then the emf (E) is nearly

The AC current in a circuit is given by $3 \sin(\omega t)$ amperes. The time taken by the current to drop from RMS value to zero is
A car of mass 1000 kg having a velocity of 10 m/s collides a horizontally mounted spring. If the spring constant is 4000 N/m, then the maximum compression of the spring is
The mass of one mole of a gas is $22.4 \times 10^{-3}$ kg and its specific heat ratio is 1.6. The speed of sound in the gas at STP is nearly
The existence of neutrino emitted in the β-decay along with electron was predicted by
A body is projected from the ground with a speed 10 m/s at angle 30° with the horizontal. The height of the body after 5 seconds of its projection is (Acceleration due to gravity = 10 m/s²)
A person walks up a stalled escalator in 80 sec. When standing on the same escalator, now moving, he is carried up in 20 s. The time taken by him to walk up the moving escalator is