List of top Physics Questions asked in AP EAMCET

In Young's double slit experiment, the intensity at a point where the path difference is \( \frac{\lambda}{6} \) ( \( \lambda \) being the wavelength of the light used) is \( I \). If \( I_0 \) denotes the maximum intensity, \( \frac{I}{I_0} \) is equal to
If the work done in stretching a wire by 1 mm is 2 J, the work necessary for stretching another wire of same material but with double radius of cross section and half the length by 1 mm is
A message signal of 3 kHz is used to modulate a carrier signal frequency 1 MHz, using amplitude modulation. The upper side band frequency and band width respectively are

A force of \( (6x^2 - 4x + 3) \, \text{N} \) acts on a body of mass 0.75 kg and displaces it from \( x = 5 \, \text{m} \) to \( x = 2 \, \text{m} \). The work done by the force is

In a potentiometer, the area of cross-section of the wire is 4 cm\(^2\), the current flowing in the circuit is 1 A, and the potential gradient is 7.5 Vm\(^{-1}\). Then the resistivity of the potentiometer wire is
Drift speed \( v \) varies with the intensity of the electric field \( E \) as per the relation

In the figure, if A & B are identical bulbs, which bulb glows brighter?

The Solar Radiation is
An object is projected such that it has to attain maximum range, while another body is projected to reach maximum height. If both objects reached the same maximum height, then find the ratio of their initial velocities.
The length of a metal bar is 20 cm and the area of cross-section is \( 4 \times 10^{-4} \) m\(^2\). If one end of the rod is kept in ice at \( 0^\circ C \) and the other end is kept in steam at \( 100^\circ C \), the mass of ice melted in one minute is 5 g. The thermal conductivity of the metal in Wm\(^{-1}\)K\(^{-1}\) is (Latent heat of fusion = 80 cal/gm)
216 small identical liquid drops each of surface area \( A \) coalesce to form a bigger drop. If the surface tension of the liquid is \( T \), the energy released in the process is

Three blocks of masses 2 m, 4 m and 6 m are placed as shown in figure. If \( \sin 37^\circ = \frac{3}{5} \), \( \sin 53^\circ = \frac{4}{5} \), the acceleration of the system is:

If \( n_e \) and \( n_h \) are concentrations of electrons and holes in a semiconductor, then the intrinsic carrier concentration (\( n_i \)) in thermal equilibrium is

In the given digital circuit, if the inputs are \( A = 1, B = 1 \) and \( C = 1 \), then the values of \( y_1 \) and \( y_2 \) are respectively 

If the maximum and minimum voltages of an A.M wave are \( V_{\max} \) and \( V_{\min} \) respectively, then the modulation factor ‘m’ is
Two copper wires A and B of lengths in the ratio \( 1:2 \) and diameters in the ratio \( 3:2 \) are stretched by forces in the ratio \( 3:1 \). The ratio of the elastic potential energies stored per unit volume in the wires A and B is
A wheel of angular speed 600 rev/min is made to slow down at a rate of \( 2 \) rad/s\(^2\). The number of revolutions made by the wheel before coming to rest is
The moments of inertia of a solid cylinder and a hollow cylinder of the same mass and same radius about the axes of the cylinders are \( I_1 \) and \( I_2 \). The relation between \( I_1 \) and \( I_2 \) is
The molar specific heat capacity of a diatomic gas at constant pressure is \( C \). The molar specific heat capacity of a monatomic gas at constant volume is
A mixture consists of two radioactive materials \( A_1 \) and \( A_2 \) with half-lives of 20 s and 10 s respectively. Initially, the mixture has 40 g of \( A_1 \) and 160 g of \( A_2 \). The amount of the two in the mixture will become equal after
If the bonding energy of the electron in a hydrogen atom is 13.6 eV, then the energy required to remove an electron from the first excited state of Li\(^{2+}\) is
The electrostatic potential energy of the electron in an orbit of hydrogen is \( -6.8 \) eV. The speed of the electron in this orbit is (C is the speed of light in vacuum):
A light body of momentum \( P_L \) and a heavy body of momentum \( P_H \), both have the same kinetic energy, then:
The surface areas of two nuclei are in the ratio \( 9:25 \). The mass numbers of the nuclei are in the ratio:
An ideal gas is found to obey \( PV^{\frac{3}{2}} = {constant} \) during an adiabatic process. If such a gas initially at a temperature \( T \) is adiabatically compressed to \( \frac{1}{4} \)th of its volume, then its final temperature is: