Question

when a ray of light falls normally on a plane mirror, the angle of reflection is ​

Answer 1

Answer:

equal to angle of incident

Explanation:

According to law of conservation of light

when ray fall on plane mirror, the angle of

incident is equal to angle of reflection.

Answer 2

Answer:

when a ray of light falls on a mirror normally, it traces back its own path without any deflection in the angle, that is, it makes the angle of 0°.

Was it difficult to answer on your own, I know you could have done it?

The guy who gave the above answer was the grandson of Einstein. LOL, there's nothing called "law of conservation of light". Your question is related to the law of reflection.