Question

Reflection of sound can occur in

Select one:

a. air.

b. water.

c. both of these

d. neither of these

Answer 1

Ans. (C)

We already know what sound is. It can be defined as auditory sensation or oscillations induced by oscillations in velocity or particle displacement. This displacement is broadcasted in a medium containing internal force. The Sound wave needs a medium to transfer. Hence, Sound transmits as a mechanical wave via medium like air or water.

Sounds Reflection follows the same law light. We all know about Ehoes. It follows the same phenomena in water as well.  The underside of the ocean surface is a nearly perfect reflector for sound under calm conditions, particularly at low frequencies.