What is the power of a convex lens with a focal length of 30 cm? - OPTICS Quiz | GKFix.in

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Question

What is the power of a convex lens with a focal length of 30 cm?

A. +0.30 dioptres
B. +3.00 dioptres
C. +3.33 dioptres
D. +30.0 dioptres

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