Question

write a short note on lens​

Answer 1

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Lens :

A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction. A simple lens consists of a single piece of transparent material, while a compound lens consists of several simple lenses (elements), usually arranged along a common axis.

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Answer 2

Explanation:

a lens is transmissive optical device that focus displaces a light bream bye means of refraction .a simple lens consists a single pieced transparent material, while a compound land consists of several simple features of lens Elance use Valley arrange along of common axis .

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