List of top Physics Questions asked in AP EAMCET

If the vertical component of the earth's magnetic field is 0.45 G at a location, and angle of dip is \( 60^\circ \), then magnetic field of earth at that location is:
A rectangular loop of sides 25 cm and 10 cm carrying a current of 10 A is placed with its longer side parallel to a long straight conductor 10 cm apart carrying current 25 A. The net force on the loop is:
When an electron placed in a uniform magnetic field is accelerated from rest through a potential difference \( V_1 \), it experiences a force \( F \). If the potential difference is changed to \( V_2 \), the force experienced by the electron in the same magnetic field is \( 2F \), then the ratio of potential differences \( \frac{V_2}{V_1} \) is:
A lamp is rated at 240V, 60W. When in use the resistance of the filament of the lamp is 20 times that of the cold filament. The resistance of the lamp when not in use is:

Five equal resistances each \( 2R \) are connected as shown in figure. A battery of \( V \) volts connected between A and B. Then current through FC is: 

 

Eight drops of mercury of equal radii and possessing equal charge combine to form a big drop. If the capacity of each drop is \( C \), then capacity of the big drop is:
Three equal electric charges of each charge \( q \) are placed at the vertices of an equilateral triangle of side length \( L \), then potential energy of the system is:
A point charge \( q \) coulomb is placed at the centre of a cube of side length \( L \). Then the electric flux linked with each face of the cube is:
The angle of polarisation for a medium with respect to air is \( 60^\circ \). The critical angle of this medium with respect to air is:
A ray of light travels from an optically denser to rarer medium. The critical angle for the two media is \( C \). The maximum possible deviation of the ray will be:
A polyatomic gas with \( n \) degrees of freedom has a mean kinetic energy per molecule given by (if \( N \) is Avogadro’s number):

Heat energy absorbed by a system going through the cyclic process shown in the figure is: 

In a Carnot engine, when the temperatures are \( T_2 = 0^\circ C \) and \( T_1 = 200^\circ C \), its efficiency is \( \eta_1 \), and when the temperatures are \( T_1 = 0^\circ C \) and \( T_2 = -200^\circ C \), its efficiency is \( \eta_2 \). Then the value of \( \frac{\eta_1}{\eta_2} \) is:
A monoatomic gas of \( n \)-moles is heated from temperature \( T_1 \) to \( T_2 \) under two different conditions:
A slab consists of two identical plates of copper and brass. The free face of the brass is at \( 0^\circ C \) and that of copper at \( 100^\circ C \). If the thermal conductivities of brass and copper are in the ratio \( 1:4 \), then the temperature of the interface is:
A large tank filled with water to a height \( h \) is to be emptied through a small hole at the bottom. The ratio of the time taken for the level to fall from \( h \) to \( \frac{h}{2} \) and that taken for the level to fall from \( \frac{h}{2} \) to \( 0 \) is:
The elastic energy stored per unit volume in terms of longitudinal strain \( e \) and Young’s modulus \( Y \) is:
If the time period of revolution of a satellite is \( T \), then its kinetic energy is proportional to:
The potential energy of a particle of mass 10 g as a function of displacement \( x \) is \( (50 \, x^2 + 100) \). The frequency of oscillation is:
The mass of a particle is \( 1 \) kg and it is moving along the \( x \)-axis. The period of its oscillation is \( \frac{\pi}{2} \). Its potential energy at a displacement of \( 0.2 \) m is:
A solid sphere of mass 50 kg and radius 20 cm is rotating about its diameter with an angular velocity of 420 rpm. The angular momentum of the sphere is:
The masses of a solid cylinder and a hollow cylinder are 3.2 kg and 1.6 kg respectively. Both the solid cylinder and hollow cylinder start from rest from the top of an inclined plane and roll down without slipping. If both the cylinders have equal radius and the acceleration of the solid cylinder is \( 4 { ms}^{-2} \), the acceleration of the hollow cylinder is:
A ball falls freely from rest from a height of 6.25 m onto a hard horizontal surface. If the ball reaches a height of 81 cm after the second bounce from the surface, the coefficient of restitution is:
A spring of spring constant \( 200 \, {N/m} \) is initially stretched by \( 10 \) cm from the unstretched position. The work to be done to stretch the spring further by another \( 10 \) cm is:
The upper \( \left(\frac{1}{n} \right)^{\text{th}} \) part of an inclined plane is smooth, and the remaining lower part is rough with a coefficient of friction \( \mu_k \). If a body starting from rest at the top of the inclined plane will again come to rest at the bottom of the plane, then the angle of inclination of the inclined plane is: