List of top Physics Questions asked in AP EAMCET

Four condensers each of capacitance 8 muF are joined as shown in the figure. The equivalent capacitance between the points A and B will be
 

The resistance between points A and C in the given network is 

A wire shaped in a regular hexagon of side 2 cm carries a current of 4 A. The magnetic field at the centre of the hexagon is.
 

A steady current is flowing in a metallic conductor of non-uniform cross section. The physical quantity which remains constant is
The rms velocity of a gas molecule of mass \( m \) at a given temperature is proportional to
Maximum height reached by a rocket fired with a speed equal to 50\% of the escape speed from the surface of the earth is (R – Radius of the earth)
If ambient temperature is 300 K, the rate of cooling at 600 K is H. In the same surroundings, the rate of cooling at 900 K is
A block of mass 1.5 kg kept on a rough horizontal surface is given a horizontal velocity of 10 ms\(^{-1}\). If the block comes to rest after travelling a distance of 12.5 m, the coefficient of kinetic friction between the surface and the block is (Acceleration due to gravity = 10 ms\(^{-2}\))
If the radio horizon of a transmitting antenna is 21.6 km, the height of the antenna is:
An electromagnetic wave travels in a medium of relative permeability \(1.3\) and relative permittivity \(2.3\). Then the speed of an electromagnetic wave in that medium is
A bar magnet of moment \(0.4 \times 10^{-3} \, {Am}^2\) is kept in a magnetic field of \(2\pi \times 10^{-3} \, {T}\). The magnet makes an angle of \(45^\circ\) with the direction of magnetic field. The torque acting on the magnet is:
Drift speed \( v \) varies with the intensity of the electric field \( E \) as per the relation
Two point charges +6 \(\mu\)C and +10 \(\mu\)C kept at a certain distance repel each other with a force of 30 N. If each charge is given an additional charge of -8 \(\mu\)C, the two charges
The moments of inertia of a solid cylinder and a hollow cylinder of the same mass and same radius about the axes of the cylinders are \( I_1 \) and \( I_2 \). The relation between \( I_1 \) and \( I_2 \) is
A carrier wave of peak voltage 16 V is used to transmit a message signal. What should be the peak voltage of the modulating signal in order to have a modulation index of 75%?
Two amplifiers are connected one after the other in series (cascaded). The first amplifier has a voltage gain of 10 and the second has a voltage gain of 20. If the input signal is 0.01 Volt, calculate the output AC signal.
The rate of a radioactive disintegration at an instant is \( 10^8 \, {s}^{-1} \). The half-life of the radioactive sample is \( 3.3 \times 10^{12} \, {s} \). The number of radioactive atoms present in the sample at that instant of time is
The ratio of kinetic energy to the total energy of an electron in a Bohr orbit of a hydrogen atom is
In a series LCR circuit, the voltage across resistance of \( 2000 \, \Omega \) is 200 V and the resonant frequency is \( 400 \, {rad/s} \). The capacitance \( C \) value is 4 μF. At resonance, the voltage across \( L \) is
A helicopter has metallic blades with length 4 m extending outward from the central point and rotating at 3 rev/s. If the vertical component of Earth's magnetic field is 40 µT, then the emf induced between the blade tip and the central point is
“Introduction of a small charged sphere into a larger one allows us to keep piling up a larger and larger amount of charge on the latter” – This is the principle of the:
A parallel plate capacitor has two plates of area 'A' separated by distance 'd'. The capacitor is charged to a potential difference 'V' and the battery is disconnected. A metal plate with area 'A' and thickness \( \frac{d}{2} \) is inserted between the plates, so that it is always parallel to the plates. The work done on the metal slab while it was inserted is:
A gas with a ratio of specific heats, \( \gamma = \frac{4}{3} \), is heated isobarically. The percentage of the given heat used in external work done is
A U-tube is partially filled with water. Oil which does not mix with water is next poured into one side of the U-tube until entire water rises by 25 cm on the other side. If the density of oil is 0.8 g cm\(^{-3}\), the oil level will stand higher than the water level by:
A torque of 10 Nm is applied on a wheel having angular momentum of 2 kg m\(^2\) s\(^{-1}\). The angular momentum of the wheel after 4 s is: