English, asked by meenavishalsingh79, 1 month ago

Power of the lens is -40, its focal length is

Answers

Answered by Anonymous

3

See..

We know that,

p=1/f

f=1/p

f=1/40

:)

Answered by gauthmathjeetendra

1

Explanation:

-1/40

answer provided by Gauthmath

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