Question

what happens when a ray of light Falls normally (or perpendicularly) on the surface of of a plane mirror
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Answer 1

Answer:

hey there it will be reflected back in same direction...

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Answer 2

Hey! mate here is your answer

when a ray of light falls normally on the surface of a plane mirror, it means that angle of incidense is Oo. according to the second law of reflection, angle of incidense is equal to the angle of reflection. this the light ray will be reflected back along the same path. ❤️

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I hope it's help u