Question

the angle between incident sound wave and perpendicular is called______​

Answer 1

Answer:

Explanation:

A perpendicular drawn on the point of incidence is called the normal. The angle which the incident sound waves makes with the normal is called the angle of incidence, "i". The angle which the reflected sound waves makes with the normal is called the angle of reflection, "r". Let’s look at the two laws of reflection

Answer 2

Answer:

Angle of incidence

Explanation:

The angle between incident sound wave and perpendicular is called angle of incidence of sound wave.