List of top Questions asked in AP EAPCET- 2023

The particles with the following speed pass undeflected in the region of crossed fields
An electron, a proton and an alpha particle are moving with same kinetic energy. If $ \lambda_1, \lambda_2, \lambda_3 $ are the de Broglie wavelengths of the electron, proton and alpha particle respectively, then
The magnetic field lines of a bar magnet
For a wavelength 670 nm of light coming from a galaxy moving with velocity $V$, the observed wavelength is 670.7 nm. The value of $V$ is
The electric field of an electromagnetic wave propagating in vacuum is given by $E = 35 \cos(kx - 4.5 \times 10^8 t)$ where $E_x$ and $t$ are in V/m and s respectively. The magnitude of the propagation vector $k$ is
An inductor is connected to an ac source of frequency 50 Hz. The frequency of the instantaneous power developed in the circuit is
The time taken by a net force of 10 N to change the velocity by 4 m/s of a body of mass 10 kg is:
A swimming pool has depth of 3 meters. The pressure at the bottom of the pool due to water alone is (Density of water is $1000$ kg/m$^3$, $g = 10$ m/s$^2$)
A drilling machine of power \(1~\text{kW}\) is used for 5 minutes to drill a hole in a \(10~\text{kg}\) metal block. If 40% of the work done by the machine is wasted as heat, the rise in temperature of the metal block is nearly (specific heat capacity of the metal = \(420~\text{J\,kg}^{-1}\text{K}^{-1}\))
The shiny metal disk in the electric power meter (analog type) rotates due to:
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 time period of a 1500 kg satellite is equal to the time period of rotation of the earth. The altitude of the satellite is nearly
The bulk modulus \( B \) and compressibility \( k \) are related by:
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:
The intensity of ground waves decreases with the increase of distance travelled is due to:
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:
A block of mass \( m \) and charge \( q \) is connected to a point 'O' with an inextensible string. This system is on a horizontal table. An electric field \( E \) is applied perpendicular to the string and in the plane of the horizontal table. The tension in the string when it becomes parallel to the electric field is:

In the circuit, the value of the current, $I$ is

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

Adiabatic bulk modulus of a gas at a pressure $ P $ is ($ \gamma $-ratio of specific heat capacity of the gas): Options:
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:
Inside a charged hollow sphere, at any point the electric field \( E \) and potential \( V \) are: