List of top Physics Questions asked in AP EAPCET

A gas in a closed container undergoes the cycle ABCDA as shown in the figure. The net heat absorbed by the gas after it has completed 20 cycles is:

A Carnot engine operates between heat reservoirs differing in temperature by 80 °C. The efficiency of the Carnot engine is \(20\%\). The temperature of the cold reservoir is:

Assume a planet with orbiting radius R and period of revolution T around the sun experiences a gravitational force which follows inverse cube law instead of inverse square law. In this case, the period of revolution is proportional to:

A wheel rotates with an angular velocity of 420 revolutions/minute when power of 660 W is transferred to it. The torque acting on the wheel is:

A block is executing simple harmonic motion and its position is given by \(x = A \cos(\omega t + \phi)\). At time \(t = 0\), the ratio of the kinetic energy to the potential energy is \(\frac{1}{3}\). The magnitude of the phase angle \(\phi\) is:

If \(y = \frac{3}{\sqrt{2}}\left(\sin \frac{\pi}{4}t + \cos \frac{\pi}{4}t\right)\) cm represents simple harmonic motion, the time period of the motion is:

A piece of metal having a square cross section of area 400 mm\(^2\) is pulled with 40 kN force, producing only elastic deformation. If the Young's modulus of the metal is \(40 \times 10^9~\text{N/m}^2\), then the strain is:

The ball initially has a velocity of 5 m/s in the positive x-direction and some time later has a velocity of 7 m/s in the positive y-direction. If the work done by the ball is 48 joule, then the mass of the ball in kg is:

A projectile needs to be launched such that its maximum height should not be more than 20 m. If the maximum initial velocity of the projectile is 40 m/s, then the horizontal range is nearly
[Acceleration due to gravity = 10 m/s\(^2\)]

A circular race track of radius 240 m is banked at an angle of 45°. If the coefficient of friction between the wheels of a race car and the road is 0.2, the maximum permissible speed to avoid slipping is:
[Acceleration due to gravity = 10 m/s\(^2\)]

Assertion [A]: A boy feels more pain when he falls down on a hard concrete floor than when he falls on the sand floor
Reason [R]: Every action has equal and opposite reaction. The time of impact of cement floor is smaller compared to that of sand floor

A thin circular ring of mass M and radius R is rotating about its axis with a constant angular velocity \(\omega\). Two objects each of mass m are attached gently to the ring on either side. The ring now rotates with an angular velocity:

Two bars A and B each of mass 100 g connected by a light spring of spring constant 10 N/m rest on a horizontal plane without tension in the string. The coefficient of friction between these bars and the surface is 0.1. The minimum force to be applied in the horizontal direction to bar A in order to shift bar B is:

A particle is moving along straight line. If its location at time t is given by \(x(t) = \alpha t e^{-t/\tau}; \alpha = 1~\text{m/s}, \tau = 1~\text{s}\). The velocity of the particle at t = 2 s is

A cyclist is riding a bicycle with a speed of 35 m/s from north to south. After some time rain starts falling vertically with the same speed as of the cyclist. How the cyclist will hold the umbrella?

The class of materials having the largest band gap in the following is

A carrier wave of peak voltage \(60\,\text{V}\) is used to transmit a message signal. Then the peak voltage of the modulating signal in order to have a modulation index of \(90\%\) is

While passing through the applied magnetic field, which of the following undergoes the maximum deflection?

Light falls normally on a non-reflecting surface. If the average force exerted on a surface with area \(15\,\text{cm}^2\) during \(20\) minute time interval is \(10^{-6}\,\text{N}\), then energy flux of light is \((c=3\times10^8\,\text{m s}^{-1})\)

The correct ascending order of the wavelengths of the following electromagnetic waves is: Ultraviolet, X-rays, Infrared, Gamma rays and Visible light.

A radioactive element \(A\) converts into another stable element \(B\). Half-life of \(A\) is \(1.5\,\text{hrs}\). After time \(t\), the ratio of atoms of \(A\) and \(B\) is found to be \(1:8\), then \(t\) in hours is

If a bar magnet is cut along the dotted line as shown in the figure and the two pieces are held separated by a small distance as they are, then

A pair of adjacent coils having a mutual inductance \(M\). The current in one coil changes from \(0\) to \(16\,\text{A}\) in \(0.3\,\text{s}\) and the change of flux linkage with the other coil is \(40\,\text{Wb}\). The value of \(M\) is

A heating element is designed to dissipate \(2400\,\text{W}\) when connected to \(240\,\text{V}\). The power it dissipates when it is connected to \(120\,\text{V}\) is \((\text{Assume that resistance of the filament is constant})\)

The magnitude of magnetic field at \(O\) due to a current carrying loop as shown in the figure is, where \(O\) is the centre of two circular portions with radii \(1\,\text{cm}\) and \(2\,\text{cm}\) respectively. Take \(I=\dfrac{1.2}{\pi}\,\text{A}\).