Concave lens diff convex lens

CONCAVE LENS -

*A concave lens is thinner at middle and thicker at edge.

* A concave lens can form virtual and erect image.

*It is a diverging lens.

*Used in binoculars and telescopes.

CONVEX LENS-

*Convex lens is thicker at middle and thinner at edge.

*A convex lens can form both real and virtual image.

*It is a converging lens.

*These are used in magnifying glasses.