The mirror surface is at a 40-degree angle.
The incidence angle is 90-40 = 50 degrees.
As a result of the rules of reflection, the angle of reflection is 50 degrees.
A ray of light strikes a plane mirror at an angle of 40 degrees to the mirror surface. What will be the angle of reflection?
A ray of light strikes a plane mirror at an angle of 40 degrees to the mirror surface. What will be the angle of reflection?