Pick out the concave and convex mirrors from the following and tabulate them

Rear-view mirror, Dentist’s mirror, Torch-light mirror, Mirrors in shopping malls, Make-up mirror.

Concave mirrors are used by dentists to examine teeth. Why?

a) Complete the diagram to show how a concave mirror forms the image of the object.

b) What is the nature of the image?

State the direction of incident ray which after reflection from a spherical mirror retraces its path. Give reason for your answer.

What is meant by magnification? Write its expression. What is its sign for the

a) real image

b) virtual image