List of top Physics Questions asked in TS EAMCET

Work function = 1.8 eV. KE max = 2.2 eV. Frequency is doubled. Find new KE max.

A proton and alpha particle enter same magnetic field with same KE at 30° angle. Ratio of pitches is:

A solenoid has 15 cm circumference and 70 turns/m carrying 2 A. Magnetic field inside and outside is:

In YDSE, intensity at path difference $\lambda/3$ is I. Find intensity at path difference $\lambda$.

The spheres A, B and C have radii R, R and 2R respectively. Initially A has charge -Q, B is neutral and C has charge such that its surface charge density equals that of A. After contact and separation, charges are:

If $\phi_A$ and $\phi_B$ are the electric fluxes leaving and entering a Gaussian surface respectively, then the charge enclosed is:

In a meter bridge, balancing point is at 25 cm. After shunting both resistances equally, balance shifts by 15 cm. Find $R_1$ and $R_2$.

If $\phi_A$ and $\phi_B$ are the electric fluxes leaving and entering a Gaussian surface respectively, then the charge enclosed is:

The temperatures of source and sink of a Carnot heat engine are $127^\circ C$ and $27^\circ C$ respectively. If the working substance is 2 moles of a rigid diatomic gas, then the decrease in internal energy during adiabatic expansion is: (R = 8.31 J mol$^{-1}$K$^{-1}$)

If the average kinetic energy of molecules of a gas at $30^\circ C$ is U, then temperature at which it becomes 2U is:

Lengths of two open pipes are in ratio 5:6. If 8 beats per second are heard when both vibrate in fundamental mode, find frequency of third harmonic of longer pipe.

Two identical boxes A and B have thermal conductivities 180 and 270 W m$^{-1}$K$^{-1}$. Ice in A melts in 21 min. Time for half ice in B to melt is:}

Focal lengths of objective = 20 m and eyepiece = 1 cm. Find angular magnification of telescope.

A point object moves towards a concave mirror (f = 20 cm) at 4 cm/s. Find speed of image when object is at 60 cm.

A wire of length 100 cm is clamped between two rigid supports and vibrates in fundamental mode. If amplitude at midpoint is A, distance between two points having amplitude $\frac{A}{\sqrt{2}}$ is:}

If W is the energy required to form a soap bubble of radius R, then energy required to increase radius from R to 3R is:

A metal wire can withstand a maximum tension of 80 N. If the wire is cut into four equal parts, then each part can withstand a maximum tension of:

If two bodies A and B of masses 5 kg and 10 kg are thrown vertically upwards from the surface of the earth with velocities $\sqrt{0.5gR}$ and $\sqrt{0.2gR}$ respectively, then the ratio of maximum heights reached by the bodies A and B is: (R = Radius of the earth)}

If $Q_1$ is heat to convert 2 g ice at 0°C to water at 40°C and $Q_2$ for 4 g ice at 0°C to water at 80°C, find $Q_1:Q_2$ (L = 80 cal/g, c = 1 cal/g°C):

A cylindrical vessel contains two immiscible liquids A and B of densities $750$ kg m$^{-3}$ and $1000$ kg m$^{-3}$. Thicknesses are 10 m and 15 m respectively. Atmospheric pressure is $10^5$ Pa. Ratio of absolute pressures at bottom and interface is:}

A particle executes SHM with amplitude 40 cm and time period 6 s. Minimum time to move from mean position to a point at 20 cm from extreme position is:

If the kinetic energy of a solid sphere when it rolls without slipping is 700 J, then its kinetic energy when it slips without rolling with same velocity is:

A body P of mass 3 kg at rest is dropped from a height of 250 m. At the same moment another body Q of mass 2 kg is thrown vertically upwards with velocity $50\text{ m s}^{-1}$. Both move along same line. The velocity of Q when centre of mass reaches maximum height is: (g = $10\text{ m s}^{-2}$)}

A block of mass 2 kg is kept on a horizontal surface and is pulled with a horizontal force F. If the surface is smooth, the acceleration is $8\ \text{m s}^{-2}$. If the surface is rough with coefficient 0.25, acceleration is: (g = $10\ \text{m s}^{-2}$)}

A ball P in motion collides with another ball Q of same mass at rest. If the coefficient of restitution between the two balls is 0.2, then the ratio of the velocities of the two balls P and Q after collision is: