Question

What is the realtion between power of lens and focal length

Answer 1

Answer:

Here is perfect explanation of your question

Explanation:

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.

Answer 2

Answer:

P = 1/f

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