Question

Write mathematical expression for the power of lens.

Answer 1

$\huge\pink{Hello}$

Power of lens is also called the inverse of focal length.

So, Power(P) = $</em></strong><strong><em>\</em></strong><strong><em>large</em></strong><strong><em>\</em></strong><strong><em>frac</em></strong><strong><em>{</em></strong><strong><em>1</em></strong><strong><em>}</em></strong><strong><em>{</em></strong><strong><em>f</em></strong><strong><em>}</em></strong><strong><em>$

$<font color="purple"><marquee> Hope it will help you</font color="purple"></marquee>$

Answer 2

The diopter is the unit of measure for the refractive power of a lens. The power of a lens is defined as the reciprocal of its focal length in meters, or D = 1/f, where D is the power in diopters and f is the focal length in meters. Lens surface power can be found with the index of refraction and radius of curvature.

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