Question

Define power of lens.

Answer 1

Answer:

Power of lens is the ability of the lens to converge the rays of light falling on it. It can also be defined as P=1/f where f is the focal length. S.I. unit of power is D(Dioptre). It is represented by letter 'P'.

Answer 2

Explanation:

Power of lens The degree of convergence or divergence of light rays achieved by a lens is expressed in terms of its power. Power of lens is reciprocal of its focal length.

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