List of top Physics Questions asked in AP EAPCET

If a sound wave emitted by a stationary source of frequency 680 Hz travels towards a stationary observer 150 m away, then the number of waves between the source and observer are (speed of sound in air = 340 m s\(^{-1}\))
A source of light approaching the Earth emits a light of wavelength \(600\, {nm}\). If this light is observed at a wavelength of \(599\, {nm}\) by an observer on Earth, then the speed of the source of light in km/s is: \[ {(speed of light in vacuum } c = 3 \times 10^8 \, {m/s)} \]
If an electric generator produces a potential difference of \(180\,{kV}\) in a spark of length \(9\,{cm}\), then the maximum electric field generated is:
The efficiency of a Carnot engine operating between the temperatures 1000 K and 300 K is
The slope of kinetic energy (on y-axis) and linear displacement (on x-axis) graph of a body gives the rate of change of:
If a ball released from a height \(H\) takes a time \(T\) to reach the ground, then the position of the ball from the ground at a time \(\frac{T}{2}\) is:
For a particle moving in x-y plane, if at any instant of time ‘t’ (in second) its displacements (in metre) are \(x=2t^{2}-t\) and \(y=4t^{2}-4t\), then the velocity of the particle at a time \(t=1\,s\) is:
A body of mass 6 kg is moved with uniform speed on a rough horizontal surface through a distance of 200 cm. If the coefficient of kinetic friction between the surface and the body is 0.1, then the work done against friction is (Acceleration due to gravity \(g = 10\, m/s^2\)):
If the time taken for a block to slide down a smooth inclined plane of angle of inclination $30^\circ$ is 4 s, then the time taken by the block to slide down a rough inclined plane of the same length and same angle of inclination is
(The coefficient of kinetic friction between the inclined plane and the block = $0.28/\sqrt{3}$)
If the measured values of the voltage across and the current through a resistor are \((100 \pm 5)\,V\) and \((10 \pm 0.2)\,A\) respectively, then the error in the determination of the resistance is:
A wire of resistance 10 \(\Omega\) is stretched to twice its original length. What is the new resistance?
The ratio of radii of first orbits of He\(^+ \) and Li\(^{2+}\) is:
A ball is thrown vertically upward with a velocity of 20 m/s from the top of a multistory building. The height of the point from where the ball is thrown is 25 m above the ground. Find the time taken before the ball hits the ground. (Take \( g = 10 \, \text{m/s}^2 \)).
A concave mirror forms an image at twice the focal length from the mirror. What is the nature and size of the image compared to the object?
A particle is projected at an angle of \( 60^\circ \) to the horizontal with an initial speed of \( 20 \, \text{m/s} \). If \( g = 10 \, \text{m/s}^2 \), what is the maximum height reached by the particle?
Two capacitors of capacitances \( 4 \, \mu\text{F} \) and \( 6 \, \mu\text{F} \) are connected in series across a potential difference of \( 300 \, \text{V} \). What is the potential difference across the \( 4 \, \mu\text{F} \) capacitor?
A light ray passes from air (\( \mu = 1 \)) into a glass slab (\( \mu = 1.5 \)) at an angle of incidence of \( 30^\circ \). What is the angle of refraction inside the glass slab?
A car accelerates uniformly from rest to a speed of 20 m/s in 8 seconds. What is the distance covered by the car during this time?
A total charge \(q\) is uniformly distributed over a circular ring of radius \(R\). The ring is rotated about its axis with angular velocity \(\omega\). Find the magnetic dipole moment of the ring.
A charged particle of mass \( m \) and charge \( q \) moves with a velocity \( \vec{v} \) perpendicular to a magnetic field \( \vec{B} \). The radius of the circular path it follows is:

One mole of an ideal gas at 300 K is compressed isothermally from a volume of \(V_1\) to \(V_2\). Calculate:
The work done on the gas
The change in internal energy
The heat exchanged with the surroundings
Use \(R = 8.314\, \text{J/molK}\), \( \ln(2.5) = 0.916\)

A Carnot engine operates between \( 500 \, \text{K} \) and \( 300 \, \text{K} \). If it absorbs \( 1000 \, \text{J} \) of heat from the source, the amount of work done by the engine is:
A ball is thrown vertically upward with a speed of 20 m/s. How high will it rise before coming to rest momentarily? (Take g = 10 m/s2)
A body starts from rest and accelerates uniformly at 2 m/s\(^2\). What is the distance covered in 5 seconds?
A ball is thrown vertically upwards with a speed of 20 m/s. How high will it rise? (Take \( g = 10 \, \text{m/s}^2 \))