Question

What is the angle of incidence when a rayof light falls normally on a plane mirror ?

Answer 1

Answer:

o

When a ray of light falls normally (or perpendicular) on the surface of a plane mirror, it means that the angle of incidence is 0o. According to the second law of reflection, the angle of incidence is equal to the angle of reflection. ... Thus, the light ray will be reflected back along the same path.