Question

What is the angle of reflection when the incident ray strikes the reflecting surface of a plane mirror normally?

Answer 1

Answer:

For a plane mirror: If the incident ray falls along the normal, the angle of incidence is 0 degrees, NOT 90 degrees. The angle is measured with the normal to the mirror and not with the plane of the mirror. Hence the angle of reflection is equal to 0 degrees.

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Answer 2

The angle of reflection will be equal to the angle of incident as per laws of reflection .