List of top Physics Questions asked in AP EAMCET

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 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:
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:

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: 

 

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:
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:
X and Y are two circuits having coefficient of mutual inductance 3 mH and resistances 10 \( \Omega \) and 4 \( \Omega \) respectively. To have induced current 60 \( \times 10^{-4} \, {A} \) in circuit Y, the amount of current to be changed in circuit X in 0.02 sec is:
Two figures are shown as Fig. A and Fig. B. The time constant of Fig. A is \( \tau_A \), and time constant of Fig. B is \( \tau_B \). Then:
Which of the following produces electromagnetic waves?
A blue lamp emits light of mean wavelength 4500\({Å}\). The lamp is rated at 150 W and 8% efficiency. Then the number of photons are emitted by the lamp per second.
The ground state energy of hydrogen atom is -13.6 eV. The potential energy of the electron in this state is:
If the energy released per fission of a \(^{235}U\) nucleus is 200 MeV, the energy released in the fission of 0.1 kg of \(^{235}U\) in kilowatt-hour is:
The semiconductor used for fabrication of visible LEDs must at least have a band gap of:
In a common emitter amplifier, a.c. current gain is 40 and input resistance is 1 kΩ. The load resistance is given as 10 kΩ. Then the voltage gain is:
An information signal of frequency 10 kHz is modulated with a carrier wave of frequency 3.61 MHz. The upper side and lower side frequencies are:
If the maximum and minimum voltages of an A.M wave are \( V_{\max} \) and \( V_{\min} \) respectively, then the modulation factor ‘m’ 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.
A block of mass 5 kg is placed on a rough horizontal surface with a coefficient of friction 0.5. If a horizontal force of 60 N is acting on it, then the acceleration of the block is (Acceleration due to gravity \( g = 10 \) ms\(^{-2}\)):

An inductor and a resistor are connected in series to an AC source of voltage \( 144\sin(100\pi t + \frac{\pi}{2}) \) volts. If the current in the circuit is \( 6\sin(100\pi t + \frac{\pi}{2}) \) amperes, then the resistance of the resistor is:

The potential difference across the ends of a conductor is \( (30 \pm 0.3) V \) and the current through the conductor is \( (5 \pm 0.1) A \). The error in the determination of the resistance of the conductor is:
A body thrown vertically upwards reaches a maximum height \( H \). The ratio of the velocities of the body at heights \( \frac{3H}{4} \) and \( \frac{8H}{9} \) from the ground is:
The equation of projectile motion is given by \( y = 3x - 0.8x^2 \). The time of flight of the projectile is (Acceleration due to gravity \( g = 10 \) m/s²):
A 100 kg gun fires a ball of 1 kg horizontally from a cliff of height 500 m. It falls on the ground at a distance of 400 m from the bottom of the cliff. The recoil velocity of the gun is (Acceleration due to gravity \( g = 10 \) ms\(^{-2}\)):
The average power generated by a 90 kg mountain climber who climbs a summit of height 600 m in 90 minutes is (Acceleration due to gravity \( g = 10 \) m/s\(^2\)):
A boy weighing 50 kg finished a long jump at a distance of 8 m. Considering that he moved along a parabolic path and his angle of jump is \( 45^\circ \), his initial kinetic energy is: