Define power of a lens. Give its S.I unit? – InterviewSolution

InterviewSolution

1.	Define power of a lens. Give its S.I unit?
Answer» Solution :Power ofa lens is the ability of a ions to converge ·or diverge an INCIDENT ray of light. It is DEFINED as the reciprocal of its FOCAL length d = [1/f (m)] DIOPTRE Its SI unit is Dioptre.

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