List of top Physics Questions asked in AP EAMCET

Depth of a river is \(100 \, {m}\). Magnitude of compressibility of the water is \(0.5 \times 10^{-9} \, {N}^{-1}{m}^2\). The fractional compression in water at the bottom of the river is (Acceleration due to gravity = \(10 \, {m/s}^2\))

What is the height from the surface of earth, where acceleration due to gravity will be \( \frac{1}{4} \) of that of the earth? (Re = 6400 km)

A test tube of mass \(6 \, {g}\) and uniform area of cross section \(10 \, {cm}^2\) is floating in water vertically when \(10 \, {g}\) of mercury is in the bottom. The tube is depressed by a small amount and then released. The time period of oscillation is: (Acceleration due to gravity = \(10 \, {m/s}^2\))
A horizontal board is performing simple harmonic oscillations horizontally with an amplitude of \(0.3 \, {m}\) and a period of \(4 \, {s}\). The minimum coefficient of friction between a heavy body placed on the board if the body is not to slip is:

A block (\(P\)) is rotating in contact with the vertical wall of a rotor as shown in figures A, B, C. The relation between angular velocities \( \omega_A, \omega_B, \omega_C \) so that the block does not slide down. (Given: \( R_A < R_B < R_C \), where \( R \) denotes radius) 

A small disc is on the top of a smooth hemisphere of radius 'R'. The smallest horizontal velocity 'V' that should be imparted to the disc so that the disc leaves the hemisphere surface without sliding down (there is no friction) is
An object of mass 'm' is projected with an initial velocity 'u' with an angle of '\(\theta\)' with the horizontal. The average power delivered by gravity in reaching the highest point is
Two objects having masses in \(1:4\) ratio are at rest. When both of them are subjected to the same force separately, they achieved the same kinetic energy during times \(t_1\) and \(t_2\) respectively. The ratio of \(\frac{t_2}{t_1}\) is
An insect is crawling in a hemi-spherical bowl of radius \( R \). If the coefficient of friction between the insect and bowl is \( \mu \), then the maximum height to which the insect can crawl the bowl is
A block of metal 2 kg is in rest on a smooth plane. It is struck by a jet releasing water of 1 kg s\(^{-1}\) at a speed of 5 m s\(^{-1}\), then the acceleration of the block is
A particle revolving in a circular path travels the first half of the circumference in 4 s and the next half in 2 s. What is its average angular velocity?
If two stones are projected at angle \( \theta \) and \( (90^\circ - \theta) \) respectively with horizontal with a speed of \( 20 \, {m/s} \). If the second stone rises \( 10 \, {m} \) higher than the first stone, then the angle of projection \( \theta \) is (acceleration due to gravity = \( 10 \, {m/s}^2 \)):
The relation between time \( t \) and displacement \( x \) is \( t = \alpha x^2 + \beta x \), where \(\alpha\) and \(\beta\) are constants. If \( \nu \) is the velocity, the retardation is:
Find the dimension formula of \(\frac{a}{b}\) in the equation \( F = a\sqrt{x} + bt^2 \), where \(F\) is a force, \(x\) is distance and \(t\) is time.
When 100 J of heat is supplied to a gas, the increase in the internal energy of the gas is 60 J. Then the gas is/can

A magnet suspended in a uniform magnetic field is heated so as to reduce its magnetic moment by 19%. By doing this, the time period of the magnet approximately

A Carnot heat engine has an efficiency of 10%. If the same engine is worked backward to obtain a refrigerator, then the coefficient of performance of the refrigerator is

Match the following physical quantities with their respective dimensional formulas.

An object is projected such that it has to attain maximum range, while another body is projected to reach maximum height. If both objects reached the same maximum height, then find the ratio of their initial velocities.

Three blocks of masses 2 m, 4 m and 6 m are placed as shown in figure. If \( \sin 37^\circ = \frac{3}{5} \), \( \sin 53^\circ = \frac{4}{5} \), the acceleration of the system is:

For a particle executing simple harmonic motion, match the following statements (conditions) from column I to statements (shapes of graph) in column II.

In a Carnot engine, the absolute temperature of the source is 25% more than the absolute temperature of the sink. The efficiency of the engine is

In the given circuit, the potential difference across the 5 \(\mu\)F capacitor is 

In a potentiometer, the area of cross-section of the wire is 4 cm\(^2\), the current flowing in the circuit is 1 A, and the potential gradient is 7.5 Vm\(^{-1}\). Then the resistivity of the potentiometer wire is

A current-carrying coil experiences a torque due to a magnetic field. The value of the torque is 80% of the maximum possible torque. The angle between the magnetic field and the normal to the plane of the coil is