Question

What is the measure of the angle made by the reflected sound with the reflecting surface when the angle of incidence is 40°​

Answer 1

Answer

320° is right answer

hope this helps you

Answer 2

Answer:

90 °

Explanation:

We know that the angle between normal and reflecting surface is 90 °.

By this,

angle of reflection + angle b/w reflected surface and reflected sound = 90°

So,the angle is 90°

Hope it helps....