Question

define power of a lens state its si unit

Answer 1

Explanation:

The ability of a lens to converge/diverge a beam of light rays is expressed in terms of its Power(P). P=1/f The SI unit of power of lens is Dioptre.It is denoted by the letter "D"

Answer 2

answer:power of lens is the ability of the lens to converge the ray of light falling on it .Can also be define ASP=1/f

where f is the focal length....... diopter is the SI unit of power of lens.obe diopter is the power of lens whose focal length is, metre.