Biology, asked by Anonymous, 11 months ago

find the focal length of a lens of power 2.0 D. what type of lens is this

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Answered by Anonymous

4

Answer:

hope it helps you see the attachment for further information

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Answered by Anonymous

3

Power of lens (P) = 1/f

P = -2D

f = -1/2 = -0.5 m

A concave lens has a negative focal length. Therefore, it is a concave lens.

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