List of top Physics Questions asked in TS EAMCET

The work done in increasing the diameter of a soap bubble from 2 cm to 4 cm is (Surface tension of soap solution \(=3.5\times10^{-2}Nm^{-1}\))
The temperatures of equal masses of three different liquids A, B, and C are \(15^\circ C\), \(24^\circ C\), and \(30^\circ C\) respectively. The resultant temperature when liquids A and B are mixed is \(20^\circ C\) and when liquids B and C are mixed is \(26^\circ C\). Then the ratio of specific heat capacities of the liquids A, B, and C is:
The energy required to take a body from the surface of the earth to a height equal to the radius of the earth is \( W \). The energy required to take this body from the surface of the earth to a height equal to twice the radius of the earth is:
The temperature on a Fahrenheit temperature scale that is twice the temperature on a Celsius temperature scale is:
The height of water level in a tank of uniform cross-section is 5 m. The volume of the water leaked in 5 s through a hole of area \(2.4~mm^{2}\) made at the bottom of the tank is (Assume the level of the water in the tank remains constant and acceleration due to gravity \(=10~ms^{-2}\))
A block of mass 0.5 kg is at rest on a horizontal table. The coefficient of kinetic friction between the table and the block is 0.2. If a horizontal force of 5 N is applied on the block, the kinetic energy of the block in a time of 4 s is (Acceleration due to gravity = 10 m/s\(^2\))
A body P is projected at an angle of 30° with the horizontal and another body Q is projected at angle of 30° with the vertical. If the ratio of the horizontal ranges of the bodies P and Q is 1:2, then the ratio of the maximum heights reached by the bodies P and Q is
A car is moving on a circular track banked at an angle of 45°. If the maximum permissible speed of the car to avoid slipping is twice the optimum speed of the car to avoid the wear and tear of the tyres, then the coefficient of static friction between the wheels of the car and the road is
Regarding fundamental forces in nature, the correct statement is
A body is falling freely from the top of a tower of height 125 m. The distance covered by the body during the last second of its motion is \(x\%\) of the height of the tower. Then \(x\) is (Acceleration due to gravity = 10 m/s\(^2\))
The ratio of the wavelengths of radiation emitted when an electron in the hydrogen atom jumps from the 4th orbit to the 2nd orbit and from the 3rd orbit to the 2nd orbit is:
A ball of mass 1.2 kg moving with a velocity of 12 ms\(^{-1}\) makes a one-dimensional collision with another stationary ball of mass 1.2 kg. If the coefficient of restitution is \( \frac{1}{\sqrt{2}} \), then the ratio of the total kinetic energy of the balls after the collision to the initial kinetic energy is
If a bar magnet of moment \( 10^{-4} \) Am\(^2\) is kept in a uniform magnetic field of \( 12 \times 10^{-3} \) T such that it makes an angle of \( 30^\circ \) with the direction of the magnetic field, then the torque acting on the magnet is:
Two stars of masses \( M \) and \( 2M \) that are at a distance \( d \) apart, are revolving one around another. The angular velocity of the system of two stars is:
If the de Broglie wavelength of a neutron at a temperature of 77°C is \( \lambda \), then the de Broglie wavelength of the neutron at a temperature of 1127°C is:
The energy released by the fission of one uranium nucleus is 200 MeV. The number of fissions per second required to produce 128 W power is:
If a body is dropped freely from a height of 20 m and reaches the surface of a planet with a velocity of 31.4 m/s, then the length of a simple pendulum that ticks seconds on the planet is:
A train with an axle of length 1.66 m is moving towards north with a speed of 90 km/h. If the vertical component of the earth’s magnetic field is \( 0.2 \times 10^{-4} \) T, the emf induced across the ends of the axle is:
The natural frequency of an LC circuit is 120 kHz. When the capacitor in the circuit is totally filled with a dielectric material, the natural frequency of the circuit decreases by 20 kHz. The dielectric constant of the material is:
Which of the following statements regarding the nature of physical laws is NOT correct?
A wooden cube of side 10 cm floats at the interface between water and oil with its lower surface 3 cm below the interface. If the density of oil is 0.9 g/cm³, the mass of the wooden cube is:

A big liquid drop splits into 'n' similar small drops under isothermal conditions, then in this process:

A plane electromagnetic wave of electric and magnetic fields \( E_0 \) and \( B_0 \) respectively incidents on a surface. If the total energy transferred to the surface in a time of \( t \) is \( U \), then the magnitude of the total momentum delivered to the surface for complete absorption is:
The operation of a nuclear reactor is said to be critical when the value of neutron multiplication factor \( K \) is
The related effort to derive the properties of a bigger, more complex system from the properties and interactions of its constituent simpler parts is: