Question

what is the angle of reflection when a ray of light fall normally or pependiculary on a plane mirror.

Answer 1

Hey !

I would be glad answering that !

When a ray falls normally in the same plane, the angle of reflection is equal to the angle of incident.

When the ray falls perpendicularly the angle of reflection is zero and the ray retraces its way back.

Hope I helped you !

Answer 2

Hey friend here is your answer

When a ray of light falls normally (or perpendicularly) on the surface of a plane mirror, this means the angle of incidence is 0° From the second law of reflection, we know that angle of incidence is equal to the angle of reflection, so the angle of reflection will also be zero.

◇ DHRUV SINGH ◇