List of top Questions asked in AP EAMCET- 2024

One kilogram of a diatomic gas is at a pressure of \(2 \times 10^4 { N/m}^{-2}\) and the density of the gas is \(4 { kg/m}^{-3}\). The internal energy of this gas:
A wheel of angular speed 600 rev/min is made to slow down at a rate of \( 2 \) rad/s\(^2\). The number of revolutions made by the wheel before coming to rest is
If a microscope is placed in air, the minimum separation of two objects seen as distinct is 6 µm. If the same is placed in a medium of refractive index 1.5, the minimum separation of the two objects to see as distinct is:
A body is executing simple harmonic motion. At a displacement \( x \), its potential energy is \( E_1 \), and at a displacement \( y \), its potential energy is \( E_2 \). The potential energy \( E \) at a displacement \( (x + y) \) is:
The maximum wavelength of light which causes photoelectric emission from a photosensitive metal surface is \( \lambda_0 \). Two light beams of wavelengths \( \frac{\lambda_0}{3} \) and \( \frac{\lambda_0}{9} \) incident on the metal surface. The ratio of the maximum velocities of the emitted photoelectrons is:
Which physical quantity is measured in barn?
The elongation of a copper wire of cross-sectional area $3.5 \text{ mm}^2$, in the figure shown, is $$ Y_{\text{copper}} = 10 \times 10^{10} \, \text{Nm}^{-2} \quad \text{and} \quad g = 10 \, \text{m/s}^2 $$   
The elongation of a copper wire
A diving board is at a height of \( h \) from the water surface. A swimmer standing on this board throws a stone vertically upward with a velocity 16 ms\(^{-1}\). It reaches the water surface in a time of 5 s. In the next 0.2s, the diver can hear the sound from the water surface. The speed of sound is (acceleration due to gravity \( g = 10 \) ms\(^{-2} \))
A bowling machine placed at a height \( h \) above the earth surface releases different balls with different angles but with the same velocity \( 10 \sqrt{3} \, \text{ms}^{-1} \). All these balls landing velocities make angles 30° or more with horizontal. Then the height \( h \) (in meters) is:
The moment of inertia of a solid sphere about its diameter is 20 kg m². The moment of inertia of a thin spherical shell having the same mass and radius about its diameter is:

The electric field for an electromagnetic wave is given by \( E = 40 \sin(kz - 6 \times 10^8 t) \), where the magnitude of \( E_0 \) is in V/m.
The magnitude of the wave vector \( k \) is 
 

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:

Two samples of same gas (\(\gamma = \frac{3}{2}\)) have equal volume. If their volumes are doubled by adiabatic and isothermal processes respectively for sample 1 and 2. Their final pressures are now equal. The ratio of initial pressures is:
A coil of two turns is made of a wire length L and another coil of four turns is made from same length L. When the same current is flowing in two coils, then the ratio of magnetic inductions at their centres is:
The efficiency of a Carnot's engine is 25%, when the temperature of sink is 300 K. The increase in the temperature of source required for the efficiency to become 50% is
Water of mass \( m \) at \( 30^\circ C \) is mixed with \( 5 \) g of ice at \( -20^\circ C \). If the resultant temperature of the mixture is \( 6^\circ C \), then the value of \( m \) is: (Given: Specific heat capacity of ice = \( 0.5 \) cal \( g^{-1} \) \( ^\circ C^{-1} \), Specific heat capacity of water = \( 1 \) cal \( g^{-1} \) \( ^\circ C^{-1} \), Latent heat of fusion of ice = \( 80 \) cal \( g^{-1} \))
X and Y are two circuits having coefficient of mutual inductance 3 mH and resistances 10 \( \Omega \) and 4 \( \Omega \) respectively. To have induced current 60 \( \times 10^{-4} \, {A} \) in circuit Y, the amount of current to be changed in circuit X in 0.02 sec is:
The resultant capacitance of parallel combination of two capacitors \( C_1 \) and \( C_2 \) is 20 µF. When these capacitors are individually connected to a voltage source of 1V, then the energy stored in \( C_2 \) is 9 times that of \( C_1 \). If these two capacitors are connected in series, the resultant capacitance value is:
Two particles of charges 4 nC and \( Q \) are kept in air with a separation of 10 cm between them. If the electrostatic potential energy of the system is 1.8 μJ, then \( Q \) is:
The displacement \( x \) of a particle moving in one direction is given by \( t = \sqrt{x} + 3 \), where \( x \) is in meters and \( t \) is in seconds. Its displacement when its velocity becomes zero is:
If the ratio of lengths, radii, and Young's moduli of steel and brass wires are \(a\), \(b\), and \(c\) respectively, their respective loads are in the ratio 5:3, then the corresponding ratio of increase in their lengths would be:
The voltage gain of a common emitter amplifier is 60. If the output and input resistances are 4 k\(\Omega\) and 2 k\(\Omega\) respectively, the power gain of the amplifier is:
The ratio of de-Broglie wavelengths for the electron and proton moving with the same velocity is given as (m\(_e\): mass of electron, m\(_p\): mass of proton)
A cell of emf 1.2 V and internal resistance 2 \( \Omega \) is connected in parallel to another cell of emf 1.5 V and internal resistance 1 \( \Omega \). If the like poles of the cells are connected together, the emf of the combination of the two cells is:
At a place the horizontal component of earth’s magnetic field is \( 3 \times 10^{-5} \) T and the magnetic declination is \( 30^\circ \). A compass needle of magnetic moment \( 18 \) A\(m^2\) pointing towards geographic north at this place experiences a torque of: