Calculate the power and type of a lens having focal length -50cm.
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Answer:
Power (P)=f1
Focal length (f)=21=0.5 m
The lens is convex lens.
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Answered by
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Answer:
As the focal length is negative, so the lens is a concave lens.
Power of lens = 1/-50cm = 1/-0.5m = -2 D
Explanation:
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