Q.7 State two differences between a convex and a concave lens.

CONVEX LENS :

(1) Convex lens is thicker at the middle than edges.

(2) Convex lens converged the light ray falling on it.

(3) Image formed is real or virtual.

CONCAVE LENS :

(1) Concave lens is thinner at the middle than edges.

(2) Concave lens diverges the light ray falling on it.

(3) Image formed is virtual.