Question

Ex 2)Law of reflection of
sound experiment​

Answer 1

Answer:

The angle of reflection is always equal to the angle of incidence . The reflected sound, the incident sound, and the normal sound belong in the same plane.

Answer 2

Answer:

When the pipe through which the sound is heard, is lifted vertically the sound of the table-clock is either weakened or diminishes completely. It shows that the reflected ray lies in the same plane of incidence. ... a smooth reflecting surface.