Question

- To verify the laws of reflection of sound, Ashok put the pipe at an angle of 40° to the
reflecting surface. At what angle to QR should he keep the other pipe to receive the
reflected sound distinctly?
Q
A
B
40°
k
P
of​

Answer 1

Answer:

within experimental error limit, angle of incidence is always/approximately equal to the angle of reflection. the incident sound wave, reflected wave and the normal at the point of incidence all lie in the same plane. Hence the law of reflection of sound is verified.