Question

A ray of light incidents on a plane mirror at an angle of 90° to its surface
. What
a) 0
b) 90°
c) 450°
d) 180°
will be the angle of relfection.​

Answer 1

Answer:

option A

Explanation:

hope it helps you

Answer 2

Answer:

b) 90°

Explanation:

The angle of reflection is equal to the angle of incidence, therefore, when a ray strikes the mirror at 90 degrees, the ray reflects back in the opposite direction on the same path, that is at 90 degrees.