Question

what is meant by power of a lens​

Answer 1

Explanation:

hi

The power of a lens is defined as the reciprocal of the focal length. ... Converging (convex ) lenses have positive focal lengths, so they also have positive power values. Diverging (concave ) lenses have negative focal lengths, so they also have negative power values.

M#

Answer 2

Answer:

Power of a lens is the ability to converge or diverge the ray of light falling on it. ... A lens of small focal length has large power of converging or diverging a parallel beam of light. Unit of power is Diopter (D) Power of lens is 1 diopter if its focal length is 1 m.