Physics, asked by priyansh0896, 10 months ago

A lens has a power of -4 d. what is its focal length.

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Answered by rozal08khan

0

Answer:

Explanation:12

Answered by Giridharan007

0

Answer:focal length is negative in formula 1 denotes the 100 CM Or 1 m focal length so we divide it with 100 by the power -4D

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