State which surface of the plane mirror reflects most of the light incident on it — the front smooth surface or the back silvered surface.

A light ray is incident normally on a plane mirror.

(a) What is its angle of incidence?

(b) What is the direction of reflected ray? Show it on a diagram.

Light from a torch is reflected by a white sheet of paper and a black polished mica sheet. Which of the two will produce a stronger reflected beam ?

A light ray strikes a mirror and retraces its path. What is the angle of incidence and angle of reflection ?