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What  is the S.I unit of …

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What  is the S.I unit of power of  lens

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Naveen Sharma 7 years, 1 month ago

Ans. Diopter is a unit of measurement of the optical power of a lens or curved mirror, which is equal to the reciprocal of the focal length measured in metres (that is, (1/metres). It is thus a unit of reciproca length.

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