Light is incident on a plane mirror at an angle of 46° relative to the normal. What is the angle of reflection? °

Answer 1

Reflection from a plane mirror uses the fact that the angle of incidence (measured from the normal to the mirror) equals the angle of reflection. In this case the angle of reflection is also 46° measured from the same normal.

P.S. The normal is a line perpendicular to the surface of the mirror.