Science, asked by DeepakMehra003, 1 year ago

A compound lens is made up of two thin lenses having power +12.5D and -2.5D. Find the focal length and powee of the combination

Answers

Answered by Anonymous

13

the combination power of this lens = + 12.5 + ( - 2.5)

= 10D

SINCE

p = 1/f

10 = 1/f

f = 1 / 10

f = 0.1 m

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