Question

Sound can travel at its fastest speed in vacuum.

• A. True
• B. False

Answer 1

The correct option is B

False

The sound is a disturbance that propagates through a medium. The disturbance travels in the medium in form of waves. Hence, it needs a medium for its propagation. Sound cannot propagate in vacuum since there are no particles that can vibrate in vacuum. On moon, there is no medium, therefore one can not hear the sound produced by others.