Question

2. A ray of light incident on a plane mirror at an angle of 90° to its surface. what will be the
angle of reflection.
a) O degrees
b) 90 degrees
c) 45 degrees
d) 180 degrees​

Answer 1

Answer:

90°

Explanation:

The reflection is always equal to the incident ray.

Answer 2

Answer:

If the angle of incidence is 90°, then the angle of reflection will also be 90°. Or, we can also say that the reflected ray will just retrace its path

Explanation:

as the second law of reflection states that

angle of incidence is always equal to the angle of reflection.