What is the difference between the two images formed above?

State one practical use each of convex mirror, concave mirror, convex lens and concave lens.

Construct ray diagrams to illustrate the formation of a virtual image using (i) a converging lens, and

(ii) A diverging lens.

A diverging lens is used in:

When an object is kept at any distance in front of a concave lens, the image foiled is always: