Physics Questions

Calculate the work done by the force of gravity when a satellite moves in an orbit of radius 40,000 km around the earth.

What will be the resistance of a wire across which, when 2V potential difference is applied, 1A current flows through the wire?

Name the type of mirror used in the headlight of vehicles

A ball of 0.1 kg is dropped from rest. When it falls through a distance of 2 m, the work done by the force of gravity is

The centre of the reflecting surface of a spherical mirror is a point called the ___.

AC is converted into DC by a

An object weighing 20 kg is raised through a height of 2 m. What will be the work done by the force of gravity in this process?

Which among the following is not an environment friendly mode of producing electricity?