The S.I Unit of the Power of Lens is ____.

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Detailed Solution

The SI Unit of the Power of Lens is dioptre.
The strength of a lens is measured using its power. i.e., how strongly a lens can cause light rays to converge or diverge. It is referred to as the reciprocal of a lens's focal length. Dioptre (

D

) is the SI Unit for lens power. The CGS Unit of the Power of the lens is :

{(centimetre)}^{- 1} = {(cm)}^{- 1} .

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