Question

What is lens? How many types of lens are there?

Answer 1

Explanation:

Iens:-

A transparent optical device used to converge or diverge transmitted light and to form Image .

Types of lens:-

1. concave lens
2. convex lens

Answer 2

Answer:

Lens is a piece of glass or other transparent material with curved sides for concentrating or dispersing light rays, used singly (as in a magnifying glass) or with other lenses (as in a telescope).

There are two types of lens. They are:

• Concave lens.
• Convex lens.

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