List of top Physics Questions asked in TS EAMCET

Wave picture of light has failed to explain
(1) photoelectric effect
(2) interference of light
(3) diffraction of light
(4) polarization of light

In a time ‘’t", the amplitude of vibrations of a damped oscillator becomes half of its initial value, then the mechanical energy of the oscillator decreases by:

The operation of a nuclear reactor is said to be critical when the value of neutron multiplication factor $ K $ is

The total internal energy of 4 moles of a diatomic gas at a temperature of $27^\circ C$ is: (Universal gas constant $ R = 8.31 \, \text{J mol}^{-1} \text{K}^{-1} $)

A body is thrown vertically upwards with a velocity of 35 ms−1 from the ground.The ratio of the speeds of the body at times 3 s and 4 s of its motion is:

Two capacitors of capacitances $ 1\mu F $ and $ 2\mu F $ can separately withstand potentials of $ 6 $ kV and $ 4 $ kV respectively. The total potential, they together can withstand when they are connected in series is:

A big liquid drop splits into 'n' similar small drops under isothermal conditions, then in this process:

An incompressible fluid is flowing through a tube of uniform cross-section. The increase in the power of the pump required to double the rate of flow is:

If the excess pressures inside two soap bubbles are in the ratio $ 2:3 $, then the ratio of the volumes of the soap bubbles is:

The concentration of electrons in an intrinsic semiconductor is $ 6 \times 10^{15} \, m^{-3} $. On doping with an impurity, the electron concentration increases to $ 4 \times 10^{22} \, m^{-3} $. In thermal equilibrium, the concentration of the holes in the doped semiconductor is:

If a ray of light passes through an equilateral prism such that the angle of incidence and the angle of emergence are both equal to 70\% of the angle of the prism, then the angle of minimum deviation is:

The speed of a transverse wave in a stretched string 'A' is 'v'. Another string 'B' of same length and same radius is subjected to same tension. If the density of the material of the string 'B' is 2\% more than that of 'A', then the speed of the transverse wave in string 'B' is

A cannon fires two similar shells one after the other each with a velocity of 100 m/s at angles 60$^\circ$ and 30$^\circ$ respectively with the horizontal such that they both hit the target at the same time. The time interval between the firing of the two shells is (Acceleration due to gravity = 10 m/s²).

An arc making an angle $15^\circ$ at the center is removed from a ring of mass $ M $ and radius $ R $. The moment of inertia of the remaining ring about an axis passing through its center and perpendicular to its plane is:

The density of a substance of mass 5.318 g which occupies a volume of 2.43 cm³ is (up to correct significant figures):

A liquid drop of diameter 2 mm breaks into 125 identical drops, then the change in the surface energy is:

The efficiency of a reversible heat engine working between two temperatures is 50\%. The coefficient of performance of a refrigerator working between the same two temperatures but in reverse direction is:

At room temperature, gaseous hydrogen is bombarded with a beam of electrons of 13.6 eV energy. The series to which the emitted spectral line belongs to: