List of top Physics Questions asked in AP EAPCET

The force required to stop a body of mass 10 kg moving along a straight line path with a velocity of 10 ms\(^{-1}\) in a time of 10 s is:
The hole and the free electron concentrations in pure silicon at room temperature are given by $1.4 \times 10^{16}\ \mathrm{m}^{-3}$. When doped with indium, and the hole concentration becomes $4 \times 10^{22}\ \mathrm{m}^{-3}$, the electron concentration is
When A = 0 and B = 1, the output is 0 for
In hydrogen spectrum, the shortest wavelengths of Lyman and Balmer series are $\lambda_1$ and $\lambda_2$ respectively. The Rydberg constant of hydrogen is
The particle having zero mass is
A charge oscillating at 750 kHz produces EM waves of frequency:
The axial field \( B_A \) and equatorial field \( B_E \) due to a short bar magnet at equal distances are related as:
Electron of charge \( e \) moves in hydrogen atom (radius \( r \)). Coulomb force between nucleus and electron is:
(Here \( K = \frac{1}{4 \pi \varepsilon_0} \))
A flexible wire loop carrying current is placed in external magnetic field. Its shape becomes:
In the circuit with 6 V battery and resistors of 2Ω each, current is 2 A. Find potential at B with respect to A.
circuit with 6 V battery and resistors of 2 each
The relation between absolute temperature (T) and pressure (P) in adiabatic process is:
If average KE of gas molecule at \( 27^\circ C \) is \( 3.3 \times 10^{-20} \, \text{J} \), find KE at \( 127^\circ C \):
A vessel withstands 100 atm. It's filled with hydrogen at 27°C (300 K) to 20 atm. Find temp. at which pressure becomes 100 atm.
A rectangular metallic block of size \( 40 \, \text{mm} \times 20 \, \text{mm} \) is pulled with a force of \( 50 \, \text{kN} \). The strain in the block is:
(Shear modulus \( = 40 \times 10^9 \, \text{Nm}^{-2} \))
A particle initially at the mean position is executing simple harmonic motion with an angular frequency \( \frac{\pi}{4} \, \text{rad/s} \). The ratio of the distances travelled by the particle in the first second and second second is:
A body moves with uniform speed of \( 20 \text{ ms}^{-1} \) in a horizontal circle. What is the change in velocity after half revolution?
A motor vehicle of mass 1000 kg is moving on a circular road having banking angle \( 30^\circ \) and coefficient of friction 0.2. Then the normal reaction force on the motor vehicle is about:
(Acceleration due to gravity = \( 10 \, \text{ms}^{-2} \))
Force is the mutual interaction between bodies according to:
A 2 kg stone is tied to a 2 m long string and whirled in a circle. If the maximum tension is 64 N, what is the max number of revolutions per minute?
The dimensional formula of a physical quantity represented by \( \frac{e^2}{4 \varepsilon_0 h} \) is:
Where \( e \) is the charge of the electron, \( \varepsilon_0 \) is the permittivity of free space, and \( h \) is Planck's constant.
An amplitude modulated wave is represented by \( 10[1 + 0.6 \sin(40 \times 10^3 t)] \sin(4 \times 10^6 t) \) volt where t is in seconds. Then the ratio of the upper to the lower side band frequencies is
When the temperature of a semiconductor increases then
The maximum kinetic energy of the emitted photoelectrons from a photosensitive material of work function \( \phi \), when light of frequency 'v' incidents on it is 'E'. If the frequency of the incident light is 3v, the maximum kinetic energy of the emitted photoelectrons is
When the current through an inductor is changed from 2 A to 6 A in time 2 s, emf induced in it is 3 V. Then the inductance of the inductor is
The incorrect statement regarding the given circuit
potential at A is 10 V