Question

A student while verifying the laws of reflection of sound measured the angle between the incident sound wave and reflected sound wave as 130°. The angle of reflection is?
options:
a)130 degree
b)65 degree
c) 90 degree
d)60 degree

Answer 1

Answer is (c) 65 degrees

Explanation: Angle of Incidence = Angle of reflection

Angle between incident ray and reflected ray =

Angle of incidence + Angle of reflection = 130 degrees

2 (Angle of reflection) = 130 degrees

Angle of reflection = 65 degrees