Math, asked by soniyabharti16, 1 month ago

A lens has power of, -27 D. What is the focal length and nature of the lens?

Answers

Answered by Mahir2105

1

Step-by-step explanation:

P=-27D

f=1/P

f=1/-27 Or -1/27

Since the focal length is (-ve)

it is a convex lens.

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