Question

state two law of reflection of sound​

Answer 1

The two laws concerned with sound reflection are as follows: The incidence angle will always be equal to the reflection angle. Moreover, the incident sound waves, the normal at incidence point and reflected wave, all rest in a common plane.

Answer 2

Answer:

The following two laws of reflection of light are applicable to sound waves as well: The incident wave, the normal to the reflecting surface and the reflected wave at the point of incidence lie in the same plane. The angle of incidence ∠i is equal to the angle of reflection ∠r.