What happens to a light ray that is incident on a plane mirror normall – InterviewSolution

1.	What happens to a light ray that is incident on a plane mirror normally?
Answer» SOLUTION :When a light RAY is incident on a plane mirror normally, the angle of incidence `anglei=0`. According to the laws of reflection, `anglei=angler`. So, the angle of reflection also must be zero. The reflected ray must travel ALONG the same path in the opposite direction.

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