Question

If angle between incident sound wave and reflected sound wave is 1500 , then angle of reflection is :
A)1500
B)750
C)400
D)900

Answer 1

Answer:

angle between the incident and the reflected wave is said to be 1500.

one should know that angle i and angle r are always equal

therefore, I + r=1500

x+x=1500

2x=1500

x=1500/2

ans is750