Question

define power of lens

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Answer 1

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

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Power of a lens is the ability to converge or diverge the ray of light falling on it is reciprocal of focal length of the lens.♥️