List of top Questions asked in AP EAPCET- 2022

A point on a taut string is moving up and down due to a wave travelling along it. The point completes 120 cycles in one fourth of a minute. The frequency of the wave is:

If a water drop of radius 2 cm breaks into \(10^9\) drops of equal size, the work done is about:
(Surface tension of water is \(72 \times 10^{-3}\) N/m)

If we consider a rectangular sheet of the solid, the coefficient of areal expansion is:

A container is filled to a height of 20 cm with water. A 30 cm thick layer of oil with specific gravity 0.8 floats on the top of water. If the density of water is 1000 kg/m\(^3\) and atmospheric pressure is \(1 \times 10^5\) Pa, then the total pressure at the bottom of the container is:
[Acceleration due to gravity = 10 m/s\(^2\)]

A gas in a closed container undergoes the cycle ABCDA as shown in the figure. The net heat absorbed by the gas after it has completed 20 cycles is:

A Carnot engine operates between heat reservoirs differing in temperature by 80 °C. The efficiency of the Carnot engine is \(20\%\). The temperature of the cold reservoir is:

A flask of volume 0.1 m\(^3\) contains He (monatomic) and O\(_2\) (diatomic) gases in the ratio 4:1. The flask is maintained at a temperature 27 °C. The ratio of the rms speeds of the He-atoms and O\(_2\)-molecules is:
(Atomic mass of He = 4 amu, and O\(_2\) = 32 amu)

Assume a planet with orbiting radius R and period of revolution T around the sun experiences a gravitational force which follows inverse cube law instead of inverse square law. In this case, the period of revolution is proportional to:

A wheel rotates with an angular velocity of 420 revolutions/minute when power of 660 W is transferred to it. The torque acting on the wheel is:

A block is executing simple harmonic motion and its position is given by \(x = A \cos(\omega t + \phi)\). At time \(t = 0\), the ratio of the kinetic energy to the potential energy is \(\frac{1}{3}\). The magnitude of the phase angle \(\phi\) is:

If \(y = \frac{3}{\sqrt{2}}\left(\sin \frac{\pi}{4}t + \cos \frac{\pi}{4}t\right)\) cm represents simple harmonic motion, the time period of the motion is:

A piece of metal having a square cross section of area 400 mm\(^2\) is pulled with 40 kN force, producing only elastic deformation. If the Young's modulus of the metal is \(40 \times 10^9~\text{N/m}^2\), then the strain is:

A projectile needs to be launched such that its maximum height should not be more than 20 m. If the maximum initial velocity of the projectile is 40 m/s, then the horizontal range is nearly
[Acceleration due to gravity = 10 m/s\(^2\)]

The ball initially has a velocity of 5 m/s in the positive x-direction and some time later has a velocity of 7 m/s in the positive y-direction. If the work done by the ball is 48 joule, then the mass of the ball in kg is:

A circular race track of radius 240 m is banked at an angle of 45°. If the coefficient of friction between the wheels of a race car and the road is 0.2, the maximum permissible speed to avoid slipping is:
[Acceleration due to gravity = 10 m/s\(^2\)]

A thin circular ring of mass M and radius R is rotating about its axis with a constant angular velocity \(\omega\). Two objects each of mass m are attached gently to the ring on either side. The ring now rotates with an angular velocity:

Two bars A and B each of mass 100 g connected by a light spring of spring constant 10 N/m rest on a horizontal plane without tension in the string. The coefficient of friction between these bars and the surface is 0.1. The minimum force to be applied in the horizontal direction to bar A in order to shift bar B is:

Assertion [A]: A boy feels more pain when he falls down on a hard concrete floor than when he falls on the sand floor
Reason [R]: Every action has equal and opposite reaction. The time of impact of cement floor is smaller compared to that of sand floor

The scientist whose major contribution is towards the measurement of electronic charge

Propanoic acid exists as dimer in which of the following:
(a) Vapour phase (b) Aqueous solvent (c) Aprotic solvent

A particle is moving along straight line. If its location at time t is given by \(x(t) = \alpha t e^{-t/\tau}; \alpha = 1~\text{m/s}, \tau = 1~\text{s}\). The velocity of the particle at t = 2 s is

A cyclist is riding a bicycle with a speed of 35 m/s from north to south. After some time rain starts falling vertically with the same speed as of the cyclist. How the cyclist will hold the umbrella?

Which of the following gives Carbylamine test?

Choose the correct statement:

Decreasing order of acidic strength for the following is: