Question

what is the lens? name it's types.​

Answer 1

Answer:

A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction.

There are two types of lens -------

1)convex

2)concave

Explanation:

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Answer 2

Answer:

lens is mirror which has a spherical or non spherical shapes use to see the object as magnifiend or zoom. it has 2 types

1.concave =the lens which is bendded inside is called concave mirror

2.convex =the lens that has outer covering whichbis occur outside is called convex mirror