Question

If the ray of light is incident on the plane mirror at an 30 then deviation produced

Answer 1

Answer:

Expert Answers info = 90 - 60 = 30 degrees.

Since, angle of incidence = angle of reflection = 30 degrees. The incident ray will have an angle of reflection of 30 degrees (made with a surface normal to the mirror surface).

The reflected ray will make an angle of 60 degrees (90 - 30 degrees) with the mirror surface.

Answer 2

Answer:

For a plane mirror: If the incident ray falls along the normal, the angle of incidence is 0 degrees, NOT 90 degrees. The angle is measured with the normal to the mirror and not with the plane of the mirror. Hence theangle of reflection is equal to 0 degrees.