Question

Which is not true for free vibrations?

Options

• The amplitude of such vibrations is a constant quantity theoretically.

• There is no loss of energy theoretically.

• They are produced under the action of restoring force and hence no external force is required.

• There frequencies changes with respect to time.

Answer 1

There frequencies changes with respect to time.

Explanation:

The frequency of free vibrations remains constant and is the body's natural frequency. The other statements describe free vibrations theoretically, so they are true.