Question

The change in potential energy when a body of mass m is raised to a height from earth’s surface is

( radius of the earth)

• A.
• B.
• C.
• D.

Answer 1

Answer: (C)

Answer 2

Gravitational potential energy at any point at a distance r form the centre of the earth is

Where and m be masses of earth and body respectively.

At the surface of the earth,

At a height h from the surface,

$\therefore$

Changes in potential energy is