Laws of Reflection — Prelims Questions

A ray of light is incident on a plane mirror at an angle of $40^circ$ with the surface. What is the angle between the incident ray and the reflected ray?

A light ray strikes a plane mirror. If the incident ray is rotated by $15^circ$ clockwise while the mirror remains fixed, what is the change in the angle of the reflected ray?

Which of the following statements is TRUE regarding diffuse reflection?

Two plane mirrors are inclined at an angle of $60^circ$ to each other. A ray of light is incident on the first mirror parallel to the second mirror. What is the angle of reflection from the second mirror?

A light ray is incident normally on a plane mirror. What is the angle between the incident ray and the reflected ray?

If a plane mirror is rotated by an angle of $20^circ$ about an axis in its plane, and the incident ray is kept fixed, by what angle does the reflected ray rotate?