Question

A lens having two spherical surface bulging outward is called.

• A. concave lens
• B. convex lens
• C. plano-convex lens
• D. plano-concave lens

Answer 1

The correct option is B convex lens


A lens having both the spherical surfaces bulging outwards is called a convex lens and a lens having both the spherical surfaces curved inwards is called a concave lens. A convex lens is also known as a converging lens.i.e it converges rays of light that are traveling parallel to its principal axis.