Question

what is the unit power of lens?

Answer 1



The power of a lens is its ability to bend light – the greater the power the greater the refraction of light. Thepower of a lens is also related to the focal length by the following formula:Power of a lens is measured in Dioptres.
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Answer 2

♡Heya!!

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The power of a lens is the reciprocal of its focal length in meters. It is represented by the letter P. The power P of a lens of focal length f is given by f = 1/P. The SI unit of power is dioptre.

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