List of top Physics Questions asked in AP EAPCET

In some ferromagnetic materials magnetization disappears on the removal of the external magnetic field. Such materials are called
In a region, the intensity of an electric field is given by \( \vec{E} = (2\hat{i} + 3\hat{j} + \hat{k}) \) NC\(^{-1} \). The electric flux through a surface of area \( 10 \hat{i} \) m\(^2 \) in the region is
The figure shows three points A, B and C in a uniform electric field \( (\vec{E}) \). The line AB is perpendicular to BC and BC is parallel to \( \vec{E} \). If \( V_A \), \( V_B \) and \( V_C \) are the potentials at A, B and C respectively, then the correct option is
three points A, B and C in a uniform electric field
A monatomic gas at 630 K expands adiabatically to 27 times its initial volume. The final temperature of the gas is
The relation \( I = I_0 \cos^2 \theta \) is (I\( _0 \) - Intensity of incident light on the analyser, I - intensity of emergent light from the analyser, \( \theta \) - angle between plane of polarization and the axis of analyser)
For the given concentration, if the ratio of the diameters of the molecules of two gases is 1 : 2, then the ratio of their mean free paths is
The amplitude of a wave, represented by displacement equation \( y = \frac{1}{\sqrt{a}} \sin \omega t \pm \frac{1}{\sqrt{b}} \cos \omega t \) will be
Light enters from air into a given medium at an angle of \( 45^\circ \) with interface of the air-medium surface. After refraction, the light ray is deviated through an angle of \( 15^\circ \) from its original direction. The refractive index of the medium is
In the given triple point curve as shown in fig, the curves AO, BO, CO represents
triple point curve
When a monatomic gas expands at constant pressure, the percentages of heat supplied that is used to do external work and to increase its internal energy are respectively
The heat energy supplied to a diatomic gas at constant pressure is 210 J, then the work done by the gas is
Under the action of a force \( F = -75y \) where F is in Newton and y is in meters, an object of mass 3 kg executes simple harmonic motion. If the velocity of the object at the mean position is 2.5 ms\(^{-1} \), the maximum acceleration of the object is
A tank of oil has height of 4 m and density of 850 kg m\(^{-3} \). The gauge pressure at the bottom of the tank is (1 atm = 10\(^5\) Pa, Acceleration due to gravity = 10 ms\(^{-2} \))
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
A steel rod of radius 20 mm and length of 2 m is acted upon by a force of 400 kN along the length. The values of stress and strain are respectively (Y\(_{\text{steel}}\) = 2 \( \times \) 10\(^{11}\) Nm\(^{-2} \))
When a body of mass 8 kg is attached to a spring balance, the reading of the balance is 20 cm. Instead of 8 kg, if another body of mass M is suspended from the spring balance and is made to oscillate vertically, the time period of oscillation is \( \frac{\pi}{5} \) s, then the value of M is (Acceleration due to gravity = 10 ms\(^{-2} \))
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 uniform motion is possible when no frictional forces oppose" is the concept of
A car is moving along a circular path having coefficient of friction 0.5 and radius of curvature 16.2 m. Then the maximum velocity of the car that can travel without falling outwards is (Acceleration due to gravity = 10 ms\(^{-2} \))
A ball of mass 10 g moving with 4 ms\(^{-1} \) collides with another ball of same mass at rest. If 0.2 is the coefficient of restitution of the collision, then the ratio of the velocity of first ball to that of the second ball is
A circular plate A of radius 1.5r is removed from one edge of a uniform circular plate B of radius 2r. The distance of centre of mass of the remaining portion from the centre of the plate B is
A force, \( \vec{F} = (4\hat{i} + 3\hat{j} - 5\hat{k}) \) N is acting on a body making an angle \( \theta \) with the horizontal. Then the angle \( \theta \) is
A flywheel is rotating at a rate of 150 rev/minute. If it slows at constant retardation of \( \pi \) rads\(^{-2} \), then the time required for the wheel to come to rest is
Wrongly matched pair among the following
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