Question

what is lens ?Name the differant types of lenses. explain them with use​

Answer 1

Answer:

Use of convex lens-

• Used in camera
• used in correction of hypermetropia

Use of concave lens-

• Used in flashlight
• Used in correction of myopia

Explanation:

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Answer 2

Answer:

Lens is a transparent material bounded by two surfaces in which both the surface may be spherical as one of surface may be plane.

Explanation:

Two types of lenses are:

1. Convex lens: Which is thick at the centre and thin at the ends.

Uses: It is used in microscopes and also used as a camera lens.

2. Concave lens:Which is thin at centre and thick at the ends.

Uses: It is used in binoculars and telescopes etc.

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