Physics, asked by ankit7188, 11 months ago

A thin sperical lens has a focal length - 20 cm what is the nature of the lens

Answers

Answered by aman3813

6

Answer:

It is a concave lens..

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Answered by Anonymous

2

Answer:

1 diopter is the the power of a lens with focal length 1m

nature of the lens will be convex

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