Convex lens is also called as _______ lens.

Concave lens is also called as _______lens.

A convex lens is also called a

Assertion : A parallel beam of light passing through the concave lens , is diverged or spread out Reason : A convex lens is also called as diverging lens.

A convex lens

a) Explain with the help of a digaram, why the convex lens is also called a converging lens. b) Define principle axis, principle focus and focal length of a convex lens.

a) Explain with the help of a diagram, why the concave lens is also called a diverging lens. b) Define the principle focus of a convex lens.