In which of the following cases can the work done increase the potential energy?

Options

A. (a) Both conservative and non-conservative forces
B. (b) Conservative force only
C. (c) Non-conservative force only
D. (d) Neither conservative nor non-conservative forces.

Answer

B

Explanation

In case of non-conservative forces, the work done is dissipated as heat, sound, etc., i.e., it does not increase the potential energy. But in case of conservative forces, work done is responsible for increasing or decreasing the potential energy.