List of top Physics Questions asked in AP EAMCET

For an amplitude modulated wave, the maximum and minimum amplitudes are respectively 16 V and 4 V. The modulation index is:

Three logic gates are connected as shown in the figure. If the inputs are \(A = 1\), \(B = 0\) and \(C = 0\) then the values of \(y_1\), \(y_2\) and \(y_3\) respectively are:

The voltage gain of a common emitter amplifier is 60. If the output and input resistances are 4 k\(\Omega\) and 2 k\(\Omega\) respectively, the power gain of the amplifier is:

The energy released in the fission of one \(_{92}^{235}{U}\) nucleus is 200 MeV. The energy released in the fission of 235 g of \(_{92}^{235}{U}\) is nearly:

If the angular momentum of an electron in the second orbit of a hydrogen atom is \(J\), then the angular momentum of an electron in the third excited state of hydrogen is:

Which of the following is NOT a unit of permeability?

A diving board is at a height of \( h \) from the water surface. A swimmer standing on this board throws a stone vertically upward with a velocity 16 ms\(^{-1}\). It reaches the water surface in a time of 5 s. In the next 0.2s, the diver can hear the sound from the water surface. The speed of sound is (acceleration due to gravity \( g = 10 \) ms\(^{-2} \))

Path of projectile is given by the equation \( Y = Px - Qx^2 \), match the following accordingly (acceleration due to gravity = \( g \))

A bowling machine placed at a height \( h \) above the earth surface releases different balls with different angles but with the same velocity \( 10 \sqrt{3} \, \text{ms}^{-1} \). All these balls landing velocities make angles 30° or more with horizontal. Then the height \( h \) (in meters) is:

A balloon carrying some sand of mass \( M \) is moving down with a constant acceleration \( a_0 \). The mass \( m \) of sand to be removed so that the balloon moves up with double the acceleration \( a_0 \) is:

A soccer ball of mass 250 g is moving horizontally to the left with a speed of 22 m/s. This ball is kicked towards right with a velocity 30 m/s at an angle 53° with the horizontal in upward direction. Assuming that it took 0.01 s for the collision to take place, the average force acting is:

One ring, one solid sphere, and one solid cylinder are rolling down on the same inclined plane starting from rest. The radius of all three are equal. The object that reaches down with maximum velocity is

The work done on a wire of volume \( 2 \) cm\(^3 \) is \( 16 \times 10^2 \) J. If the Young's modulus of the material of the wire is \( 4 \times 10^{12} \) Nm\(^{-2} \), then the strain produced in the wire is

Water flows from a tap of diameter 1.5 cm with velocity \( 7.5 \times 10^{-5} \, \text{m}^{3}\text{s}^{-1} \). The coefficient of viscosity of water is \( 10^{-3} \) Pas. The flow is:

A uniform metal solid sphere is rotating with angular speed \( \omega_0 \) about its diameter. If the temperature is raised by 50°C, the angular speed will be: Given \( \alpha_{\text{metal}} = 20 \times 10^{-5} \, \text{°C}^{-1} \)

When 2 moles of a monatomic gas expands adiabatically from a temperature of 80°C to 50°C, the work done is \( W \). The work done when 3 moles of a diatomic gas expands adiabatically from 50°C to 20°C is:

If the ratio of the absolute temperature of the sink and source of a Carnot engine is changed from 2:3 to 3:4, the efficiency of the engine changes by:

When a convex lens is immersed in two different liquids of refractive indices 1.25 and 1.5, the ratio of the focal lengths of the lens is 5:16. The refractive index of the material of the lens is:

The work function of a photosensitive metal surface is \(6.4 \times 10^{-19} \, {J}\). The maximum kinetic energy of the emitted photoelectrons when electromagnetic radiation of wavelength 1240 Å incidents on the metal surface is nearly:

The refractive index of medium is 1.8 and its relative permeability is 2.16. The relative permittivity of the medium is (nearly):

A resistor of resistance \( R \), an inductor of inductive reactance \( 2R \), and a capacitor of capacitive reactance \( 3R \) are connected in series to an ac source. The power factor of the series LCR circuit is:

A pair of adjacent coils has a mutual inductance of 80 mH. If the current in one coil changes from 10 A to 25 A in a time of 1.5 s, the change of flux linked with the other coil is:

The angle of dip at a place where the vertical and horizontal components of earth's magnetic field become equal is:

A wire of length 100 cm is bent in the form of a circular coil of 5 turns and another wire of length 60 cm is bent in the form another circular coil of 4 turns. If the same current flows through the two coils, then the ratio of the magnetic fields induced at the centres of the two coils is:

A very long straight conductor is carrying a steady current of \(2.2 \, {A}\). The conductor is placed on a horizontal table such that the current in the conductor is from south to north. If the horizontal component of the earth's magnetic field at the place is \(3.2 \times 10^{-5} \, {T}\), the force per unit length on the conductor is: