Question

What is the formula for power of lens ?? ​

Answer 1

Answer:

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

P = 1/f

Where P is the power of lens and

f is the focal length in m.