Question

what is meant by power of lens​

Answer 1

Answer:The power of a lens is defined as the reciprocal of its focal length. It is represented by P. The power of a lens is related to focal length as below, Power of a lens = 1/Focal Length in meters

Explanation:

Answer 2

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The diopter is the unit of measure for the refractive power of a lens. The power of a lens is defined as the reciprocal of its focal length in meters, or D = 1/f, where D is the power in diopters and f is the focal length in meters. Lens surface power can be found with the index of refraction and radius of curvature.

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