Find the focal length of a lens of power -2.0 D. What type of lens is this?

Asked by Vishal kumar | 1 year ago |  366

##### Solution :-

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

Answered by Shivani Kumari | 1 year ago

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