List of top Physics Questions asked in TS EAMCET

The momentum of an electron is $6.625 \times 10^{-28} \, kg \cdot ms^{-1}$. What is its wavelength in nm? - (Given: $ h = 6.625 \times 10^{-34} \, J \cdot s$)

A $5$ kHz frequency signal is amplitude modulated on a carrier wave of frequency $2$ MHz. - One possible frequency of the resultant signal is

The power delivered by the battery shown in the figure is - (Take the forward and reverse biased resistances of the diode are zero and infinity respectively)

In a common emitter transistor circuit, if the emitter current is changed by 4 mA, the collector current changes by 3.5 mA, then the current gain is

If the nucleus $X^{240}$, initially at rest, splits into two daughter nuclei $Y^{100}$ and $Z^{140}$, then the ratio of the kinetic energies of $Y$ and $Z$ is

The energy equivalent of $3.2 \, \mu g$ of mass is

In Geiger-Marsden experiment, if the initial speed of $\alpha$ particle is doubled, then the closest distance of approach of the $\alpha$ particle from the gold nucleus - (Assume $\alpha$ particle is projected straight towards the gold nucleus)

If the wavelength of the incident radiation on a photosensitive metal surface is decreased from $3100 \, \text{Å}$ to $1550 \, \text{Å}$, the maximum kinetic energy of the emitted photoelectrons is tripled. - The work function of the metal surface is

If two electromagnetic waves with electric fields given by $$ \vec{E_1} = E_0 \sin (kx - \omega t) \hat{j} $$ and $$ \vec{E_2} = E_0 \sin (kx - \omega t + \pi) \hat{j} $$ - interfere, then the peak value of the electric field of the resultant wave is

When an alternating voltage given by $E = 100 \sin(10^2 t)$, where $E$ is in volts and $t$ is in seconds, is applied across a capacitor of capacitance $20 \, \mu F$, the peak current flowing in the circuit is

When a diamagnetic substance of relative permeability $0.5$ is filled inside a solenoid, then its self-inductance

A coil of 200 turns and area of cross-section $5 \times 10^{-3} \, m^2$ carries a current of 3 A. - The magnetic moment of the coil is

The ratio of the values of acceleration due to gravity at heights $ h_1 $ and $ h_2 $ from the surface of the earth is $ 16:9 $. If height $ h_1 = 2R_E $, then $ h_2 $ is:

If the peak value of the magnetic field of an electromagnetic wave is $ 30 \times 10^{-9} \, \text{T} $, then the peak value of the electric field is

A boy of height 1.2 m is standing in front of a large concave mirror of radius of curvature 20 m at a distance of 40 m from the mirror. The distance of the image of the boy from the boy is:

The Brewster angle for air to glass transition of light is
(Refractive index of glass = $ 1.5 $

A wooden cube of side 10 cm floats at the interface between water and oil with its lower surface 3 cm below the interface. If the density of oil is 0.9 g/cmÂ³, the mass of the wooden cube is:

A magnetic field is applied in y-direction on an $ \alpha $-particle traveling along x-direction. The motion of the $ \alpha $-particle will be:

When two wires are connected in the two gaps of a meter bridge, the balancing length is 50 cm. When the wire in the right gap is stretched to double its length and again connected in the same gap, then the new balancing length from the left end of the bridge wire is:

Water flows through a horizontal pipe of variable cross-section at the rate of 12$\pi$ litres per minute. The velocity of the water at the point where the diameter of the pipe becomes 2 cm is:

The capacitance of a parallel plate capacitor is 1.5 µF. If the distance between the plates is halved and the space between the plates is filled with a medium of dielectric constant 3, then the new capacitance is:

A body is projected from the surface of the earth with a velocity of $ 10 \sqrt{3} \, \text{m/s} $ such that its range is maximum. The velocity of the body at half of the maximum height is:

The change in moment of inertia of a solid sphere of mass $ M $, radius $ R $, for a small change in temperature $ \Delta t $ is:

The half-lives of two radioactive materials A and B are respectively $ T $ and $ 2T $. If the ratio of the initial masses of the materials A and B is 8:1, then the time after which the ratio of the masses of the materials A and B becomes 4:1 is:

The physical quantity which has the same value for green light, $\gamma$-radiation, and X-rays is: