List of top Physics Questions asked in AP EAPCET

The electric flux through the surface of a thin spherical shell of radius 6 cm, having a point charge 2 µC at its center is
The capacitance of a solid sphere of radius 18 cm is
A spherical black body of radius 12 cm at a temperature of \(T\) K radiates a power of 400 W. If the radius of the sphere is doubled and absolute temperature is halved, then the power radiated by the body is
When a stretched string is vibrated simultaneously with a 440 Hz tuning fork, a beat frequency of 5 Hz is produced. If the experiment is repeated with a tuning fork of 437 Hz, the beat frequency produced is 8 Hz. The frequency of the string is
A small solid sphere of mass 10 g and density \( 2600 \, \text{kg/m}^3 \) is dropped into a long vertical column of glycerine. When the sphere attains terminal velocity, the magnitude of the viscous force acting on the sphere is
(Acceleration due to gravity \( g = 10 \, \text{m/s}^2 \), Density of glycerine \( = 1300 \, \text{kg/m}^3 \))
A body of mass 10 kg is attached to one end of a wire of length 0.3 m and area of cross-section \(10^{-6} \, \text{m}^2\). If the maximum stress the wire can withstand is \(2.7 \times 10^7 \, \text{N/m}^2\), then the maximum angular velocity with which the wire-body system can be rotated in a horizontal circle about the other end of the wire is
During adiabatic expansion process, if the temperature of 4 moles of a monoatomic gas is decreased by \(100^\circ C\), then the work done by the gas is
(Universal gas constant \(R = 8.3 \, \text{J/mol·K}\))
If a Carnot engine working between the temperatures \(300 \, \text{K}\) and \(600 \, \text{K}\) has work output of \(800 \, \text{J}\) per cycle, then the heat supplied to the engine from source per cycle is
At constant pressure, if the work done by a gas is 40% of the increase in the internal energy of the gas, then the specific heat capacity of the gas at constant volume is
(Universal gas constant \(R = 8.3 \, \text{J mol}^{-1} \text{K}^{-1}\))
If an object of mass 1 kg is taken to a height which is equal to three times the radius of the earth, then the change in its potential energy is
(Radius of the earth \( = 6400 \, \text{km} \), acceleration due to gravity \( g = 10 \, \text{m/s}^2 \))
If two temperatures on Celsius scale differ by \( 25^\circ \), then the difference of those two temperatures on Fahrenheit scale is
If a solid sphere of mass 50 g and diameter 20 cm rolls without slipping with a velocity \(5\, \text{cm/s}\) on a surface, then its total kinetic energy is
For a body in simple harmonic motion, the relation between force \( F \) (in Newton) acting on the body and its displacement \( y \) (in metre) is given as \( F + 3y = 0 \). If the time period of oscillation of the body is \( \pi \) s, then its mass is
A body A of mass 200 g moving with a velocity \(\vec{v}_1 \hat{i}\) makes collision with another body B of mass 100 g moving with a velocity \(\vec{v}_2 \hat{i}\). After collision, A and B move with velocities \(\vec{v}_3 \hat{i}\) and \(\vec{v}_4 \hat{i}\) respectively. If \(v_3 = 0.5v_1\), then the value of \(v_1\) is
A force of 18 N is acting in the direction of motion of a body of mass 3 kg moving with a velocity of 2 ms\(^{-1}\). The velocity of the body when it displaces by 5 m is
A body of mass 2 kg starts moving from the origin (0, 0) with an initial velocity of \( (4\hat{i} + 4\hat{j})\ \text{ms}^{-1} \). A constant force of \( -20\hat{j} \ \text{N} \) is applied on the body. When the Y-coordinate of the position of the body becomes zero again, then its X-coordinate is
The ratio of the radius of a uniform circular disc and its radius of gyration about a tangent in its plane is
If the amplitudes of a damped harmonic oscillator at times 3 and 6 seconds are 6 cm and 4 cm respectively, then the initial amplitude of the oscillator is
If a body is projected horizontally from a height of 50 m with a speed of 20 m/s, then its speed after a time of 1.5 s is
(Acceleration due to gravity \( g = 10\ \text{m/s}^2 \))
A person walks up an escalator at rest in a time of 60 s. When standing on the same escalator now moving with a uniform speed, he is carried up in a time of 30 s. The time taken for him to walk up the moving escalator is
The magnitudes of two vectors \(\vec{A}\) and \(\vec{B}\) are \(A\) and \(B\) respectively, the magnitude of their resultant vector \(\vec{R}\) is \(R\). If \(\theta\) is the angle between the vectors \(\vec{A}\) and \(\vec{B}\), the angle made by the vector \(\vec{R}\) with the vector \(\vec{A}\) is \(\alpha\), then
If A, B and C represent Planck’s constant, mass and velocity respectively, then the dimensional formula of \(\frac{A}{BC}\) is
In a transistor, if the emitter and collector currents are respectively 2 mA and 1.95 mA, then the base current is
To get an output value $ 1 $ from the given circuit, the input values of $ A $, $ B $, and $ C $ are:
output value 1 from the given circuit,
If the maximum amplitude of a modulated wave is three times its minimum amplitude, then the modulation index of the wave is