List of top Physics Questions asked in AP EAPCET

A ray of light is incident at \(30^\circ\) from a medium of refractive index 2 into a medium of refractive index 1. Then the angle of refraction is:
A capacitor has capacitance \(C_0\) when there is no dielectric between its plates. Two slabs of dielectric constant \(K_1\), \(K_2\) respectively with area equal to area of plates but thickness half of the distance between the plates are placed in between the plates. Then the new capacitance is
A metal tape calibrated at \( 25^\circ C \) is used at \( -15^\circ C \). Coefficient of linear expansion is \( 1 \times 10^{-5}\ /\ ^\circ C \). Find percentage error in measurement.
An object undergoing SHM takes 0.5 s to travel from one point of zero velocity to the next such point. The angular frequency \( \omega \) is:
A ball is projected from the ground into the air. At a height of 5 m, its velocity is \( \vec{v} = (5 \hat{i} + 5 \hat{j}) \, \text{m/s} \). The maximum height reached by the ball is: \( (g = 10 \, \text{m/s}^2) \)
As shown in the figure, two spherical cavities are made in the uniform solid sphere of radius R. The boundaries of the cavities touch at the centre of the sphere. The centers of the cavities and the sphere lie on the x-axis. The mass of the solid sphere before the cavities were created was M. The gravitational force on a point mass m at a distance 'd' away from the center of the solid sphere is
two spherical cavities are made in the uniform solid sphere of radius R
The movable cylindrical pistons \( P_1 \) and \( P_2 \) of a hydraulic lift are of radii 2 m and \( R \) respectively. A body of mass 32 kg on piston \( P_2 \) is supported by a body of mass 2 kg placed on piston \( P_1 \). The value of \( R \) is
A vessel contains 3 moles of He, 1 mole of Ar, 5 moles of N$_2$ and 3 moles of H$_2$. If the vibrational modes are ignored, the total internal energy of the system of gases is
A monatomic gas ($\gamma = \frac{5}{3}$) at a pressure of 4 atm is compressed adiabatically so that its temperature rises from 27 $^\circ$C to 327 $^\circ$C. The pressure of the gas in its final state is
Two electrons \( e_1 \) and \( e_2 \), both having mass \( m \) and charge \( q \), are projected perpendicular to a magnetic field \( B \). If the kinetic energy of \( e_1 \) is twice that of \( e_2 \), what is the relation between their rotation frequencies \( f_1 \) and \( f_2 \)?
If the dimensional formula of (Energy $\times$ speed) is $[M^a L^b T^c]$ then $a, b$ and $c$ are
Which of the following statements is correct regarding the photoelectric effect?
A mass of 1 kg falls from a height of 1 m and lands on a massless platform supported by a spring with spring constant \( 15 \, \text{Nm}^{-1} \). The maximum compression of the spring is (take \( g = 10 \, \text{ms}^{-2} \))
A mass of 1 kg falls from a height of 1 m
A large number of positive charges, each of magnitude $ q $, are placed along the x-axis at the origin and at every 1 cm distance in both directions. The electric flux through a spherical surface of radius 2.5 cm centered at the origin is:
Assertion (A): In S.H.M kinetic and potential energy become equal when the distance is $\frac{1}{\sqrt{2}}$ times its amplitude. Reason (R): The potential energy of a particle executing S.H.M is periodic with time period being maximum at the extreme displacement.
An electromagnetic wave travels along the z-axis. At a certain point in space, the electric field is \( 8.7 \, \text{Vm}^{-1} \) along the x-axis. What is the magnitude of the magnetic field along the y-axis?
Masses \( m \left(\frac{1}{3}\right)^N \) are placed at \( x = N \), for \( N = 2, 3, 4, \dots \). If the total mass is \( M \), then the center of mass of the system is:
The component of a vector $ \vec{P} = 3\hat{i} + 4\hat{j} $ along the direction $ \hat{i} + 2\hat{j} $ is
The frequency suitable beyond the horizon communication using sky wave is:
One mole of an ideal monatomic gas undergoes the process A $\rightarrow$ B $\rightarrow$ C $\rightarrow$ D $\rightarrow$ A as shown in the graph. The work done during the process is
an ideal monatomic gas undergoes the process A → B → C → D →A
The volume of a gas at 30 °C temperature and 760 mm of Hg pressure is 100 cc. Then its volume at the same temperature and 400 mm of Hg is
Two forces of magnitude 4 N act on an object of mass 1 kg: \( \vec{F}_1 \) at 30° to x-axis and \( \vec{F}_2 \) along y-axis. Find the magnitude of acceleration.
The correct order of electromagnetic waves with increasing frequency is:
Two wooden blocks of mass M\(_1\) and M\(_2\) rest on a frictionless table. A bullet of mass m is fired at M\(_1\) with speed v which embedded in it and the two together finally collide with M\(_2\). Find the velocity of M\(_2\) after collision. [Ignore any energy loss and treat the problem to be one dimensional]
A body is suspended from a string of length 1 m and mass 2 g. The mass of the body required to produce a fundamental frequency of 100 Hz in the string is (Take \( g = 10 \, \text{ms}^{-2} \))