Anyone Please help plssss
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The power of a lens is defined as the reciprocal of the focal length. ... Converging (convex ) lenses have positive focal lengths, so they also have positive power values. Diverging (concave ) lenses have negative focal lengths, so they also have negative power values.
Hence, the answer is a) 8.33D
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57 c
58c
59 a
60 b
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