Question

A Ray of light incident normally on a plane mirror the angle of reflection will be

Answer 1

Answer:

✅ The angle of reflection will be 0°

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Answer 2

Hey mate here is your answer

A ray of light is incident normally (perpendicularly) on a plane mirror.where will this Ray of light go after reflection from the mirror

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.

as we know that angle of incidence is equal to the angle of reflection,therefore, angle of reflection will also be perpendicular to the mirror. Or, we can say Li=Lr=90°.

Hope it helps you!