List of top Physics Questions asked in AP EAPCET

Telescope has objective diameter 250 cm. For wavelength \( \lambda = 600 \, \text{nm} \), the limit of resolution is:
The relation between absolute temperature (T) and pressure (P) in adiabatic process is:
A convex lens has radius of curvature \( R = 40 \, \text{cm} \) for both surfaces and refractive index \( \mu = 1.5 \). Find the focal length.
A vessel withstands 100 atm. It's filled with hydrogen at 27°C (300 K) to 20 atm. Find temp. at which pressure becomes 100 atm.
A standing wave having 3 nodes and 2 antinodes is formed between two atoms separated by a distance of \( 1.21 \, \text{\AA} \). The wavelength of the wave is:
If average KE of gas molecule at \( 27^\circ C \) is \( 3.3 \times 10^{-20} \, \text{J} \), find KE at \( 127^\circ C \):
A steel tape of 300 cm is graduated at \( 27^\circ \text{C} \). A steel rod measured to be 110 cm at \( 50^\circ \text{C} \) with this tape has actual length (given \( \alpha_{\text{steel}} = 1.2 \times 10^{-5} \, \text{K}^{-1} \)):
In a Carnot engine, if the temperatures of the source and sink are both decreased by 100 K, the efficiency:
A rectangular metallic block of size \( 40 \, \text{mm} \times 20 \, \text{mm} \) is pulled with a force of \( 50 \, \text{kN} \). The strain in the block is:
(Shear modulus \( = 40 \times 10^9 \, \text{Nm}^{-2} \))
The time period of a simple pendulum on the surface of the Earth is \( T \). At what height above the surface will the time period become \( 2T \)?
(Radius of Earth = \( 6400 \, \text{km} \))
Which of the following statements are true about acceleration due to gravity \( g \)?
A. \( g \) is greater at poles.
B. \( g \) decreases with height.
C. \( g \) is same all over Earth.
D. \( g \) is maximum at centre of Earth.
A particle initially at the mean position is executing simple harmonic motion with an angular frequency \( \frac{\pi}{4} \, \text{rad/s} \). The ratio of the distances travelled by the particle in the first second and second second is:
A body moves with uniform speed of \( 20 \text{ ms}^{-1} \) in a horizontal circle. What is the change in velocity after half revolution?
A motor vehicle of mass 1000 kg is moving on a circular road having banking angle \( 30^\circ \) and coefficient of friction 0.2. Then the normal reaction force on the motor vehicle is about:
(Acceleration due to gravity = \( 10 \, \text{ms}^{-2} \))
A freely falling body has attained a velocity of \( 2 \, \text{ms}^{-1} \). If it is opposed by air resistance, total distance before stopping is:
Force is the mutual interaction between bodies according to:
A spherical portion A of radius \( R \) is removed from a solid sphere B of radius \( 2R \), both centered. The ratio of moments of inertia of remaining part to original is:
A disc of moment of inertia \( 3.5 \, \text{kg m}^2 \) is rotating at \( 30 \, \text{rad/s} \). Torque to stop it in 5 seconds is:
If a body has a potential energy of \( (4x^2 + 2x) \, \text{J} \) at height 2 m, then the force acting on it is:
If a person moving along a straight line covers the first half of the distance with velocity \( V_1 \) and the next half with velocity \( V_2 \), then the average velocity is:
A 2 kg stone is tied to a 2 m long string and whirled in a circle. If the maximum tension is 64 N, what is the max number of revolutions per minute?
The dimensional formula of a physical quantity represented by \( \frac{e^2}{4 \varepsilon_0 h} \) is:
Where \( e \) is the charge of the electron, \( \varepsilon_0 \) is the permittivity of free space, and \( h \) is Planck's constant.
An amplitude modulated wave is represented by \( 10[1 + 0.6 \sin(40 \times 10^3 t)] \sin(4 \times 10^6 t) \) volt where t is in seconds. Then the ratio of the upper to the lower side band frequencies is
An inductor is connected to an ac source of frequency 50 Hz. The frequency of the instantaneous power developed in the circuit is
If \( \vec{E} \) and \( \vec{B} \) are the electric and magnetic field vectors of an electromagnetic wave, then the direction of propagation of the electromagnetic wave is