List of top Physics Questions asked in AP EAPCET

A conducting sphere of radius 5 cm has an unknown charge. The electric field at 10 cm from the center of the sphere is $1.8 \times 10^3$ N/C. The net charge on the sphere is

The figure shows a part of a circuit. The voltage across A and B is 4V. Then the voltages across 2 $\mu$F and 1.5 $\mu$F are respectively

Two equipotential surfaces A and B are separated by a distance x. The work done in moving a charge -q from A to B is (Assume $\varepsilon_0$ = permittivity of free space)

A wave is reflected from a rigid support. The change in phase on reflection will be

In the given circuit, the potential difference between B and D is zero. Then the value of the current I is

A liquid of density 800 kg/m$^3$ is used instead of mercury in the Torricelli barometer. What is the height of the liquid column if atmospheric pressure is 76 cm of Hg? (Density of mercury = $13.6 \times 10^3$ kg/m$^3$)
If $\Delta Q$ is the heat supplied and $\Delta W$ is the work done by the gas at constant pressure, then the ratio $\dfrac{\Delta Q}{\Delta W}$ is ($\gamma$ = specific heat ratio)
A Carnot's engine can have 100% efficiency if the temperature of the sink is
A block A of mass 1.6 kg is executing SHM with amplitude of 10 cm. A block B of mass 0.9 kg is kept on A. When A passes through its equilibrium, the amplitude of oscillation of the system of block A and B is
The power of an engine which draws 1000 kg of water from a well of depth 9 m in one minute is (acceleration due to gravity $g = 10$ m/s$^2$)
A body executes simple harmonic motion under the action of a force $F_1$ with a frequency $n_1$ and under another force $F_2$ with frequency $n_2$. If both forces act simultaneously in the same direction, the frequency of oscillation of the body is
A hole is drilled from one end to the other end of Earth and an object of mass $m$ is dropped down the hole. The gravitational force acting on the object as a function of distance $r$ from the center of Earth is (Assume mass of Earth = $M$, radius = $R$, and uniform density)
A metal wire breaks when a tensile force of 100 N is applied. If the diameter of the wire is 2 mm, the breaking stress of the wire is
The force, $F = (2x^2 + 5x + 4)$ N is acting on a body. If the body moves from $x = -1$ m to $x = +1$ m in the direction of force, then the work done by the force is
The angle between two vectors $\vec{i} + \vec{j}$ and $\vec{j} + \vec{k}$ is
The distance $s$ (in m) travelled by a particle is given by the expression $s = 5t^2 + 8t$, where $t$ is time in seconds. The acceleration of the particle is
A uniformly charged conducting sphere of 2.4 m diameter has a surface charge density of 80.0 $ \mu C \, m^{-2} $. The charge on the sphere is nearly:
In a Young’s double slit experiment, a laser light of wavelength 560 nm produces an interference pattern with consecutive bright fringes’ separation of 7.2 mm. Now another light is used to produce an interference pattern with consecutive bright fringes’ separation of 8.1 mm. The wavelength of the second light is:

Two mercury drops of radii $ r $ and $ 2r $ merge to form a bigger drop. The surface energy released in the process is nearly (Surface tension of mercury is } $S$ and take $9^{2/3} = 4.326$)

A message signal of frequency 14 kHz is used to modulate a carrier of frequency 900 kHz. Then, the frequencies of the sidebands are:
The photo current in a photo diode depends on:
The process that mainly takes place in stars to produce energy:
The minimum excitation energy of an electron revolving in the first orbit of hydrogen is:
Electromagnetic waves of energy flux $ 75 \times 10^4 \, \text{W/m}^2 $ incidents normally on a surface of area $ 40 \, \text{cm}^2 $. If the surface absorbs the flux completely, the total momentum delivered to the surface in one second is: Options:
The de Broglie wavelength of a charged particle accelerated through a potential difference $ V $ is $ \lambda $. If the potential difference is increased by 21%, the de Broglie wavelength of the charged particle is: