Question

2. If the angle between the incident ray and the reflected ray is 90°, what are the values of the angle of incidence and angle of reflection?
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Answer 1

Answer:

What is the angle of incidence of a ray if the reflected ray is at an angle of 90 to the incident ray? Ans. The angle of incidence ray will be 45°.

Answer 2

Angle of incidence= Angle of reflection

Angle between incident ray and reflected ray= 90°

/_i + /_r= 90°

/_i= /_r

.°. /_i + /_i= 90°

2 × /_i= 90°

/_i= 90/2

/_i= 45°

.°., /_i = /_r = 45°