Question

B) Find angle of incidence and angle of reflection in each of the following diagram ?
40
(a)
(b)

Answer 1

Answer:

The angle of incidence is 50° and the angle of reflection is also 50°

Explanation:

The normal is always at 90° to the surface or they are always perpendicular.

Therefore, ∠i = 90° - 40° = 50°

We know, according to law of reflections

                  ∠i = ∠r

So,              ∠i = ∠r = 50°