Physics questions
20027 published questions with worked solutions.
- Which one of the following is not a conservative force ?
- A negative work is done when an applied force F and the corresponding displacement S are
- What is the mass of a material, whose specific heat capacity is 400 J /( kg ,^ C ) for a rise in temperature from 15 ,^ C to 25...
- The specific latent heat of vaporization of a substance is the quantity of heat needed to change unit mass from
- Evaporation from the surface of a given liquid takes place more rapidly when
- Which of the following statements correctly explains/explain the existence of a positive force between two electric charges? 1....
- An electric wire of resistance 50 ohm is cut into five equal wires. These wires are then connected in parallel. What is the...
- The electric field lines from an isolated positively charged conducting sphere are
- Which one of the following correctly represents the SI unit of resistivity?
- What is the current required to light a 60 W incandescent bulb in a domestic supply of 240 V ?
- The magnetic field produced by a current-carrying straight wire at a point outside the wire depends
- What is the dimension of gravitational constant?
- A ball is thrown vertically upward with a speed of 40 m/s. The time taken by the ball to reach the maximum height would be...
- The time period of a 1 m long pendulum approximates to
- The twinkling of a star is due to the atmospheric
- A mass M is dragged by a pulley on a horizontal plane by a force anti-parallel to its displacement. The work done in pulling the...
- A 5 N force is defined when a mass of 10 kg is accelerated with
- A boy of mass 52 kg jumps with a horizontal velocity of 2 m/s onto a stationary cart of mass 3 kg. The cart is fixed with...
- The energy possessed by a body due to its change in position or shape is called
- A sound wave has a frequency of 1 kHz and wavelength 50 cm. How long will it take to travel 1 km?