Question

what is power of lens​

Answer 1

diopter is the power of lens

D=1/f

Answer 2

$<marquee>power of lens is a reciprocal of its focal length.dioptre is the SI unit of power of lens.one dioptre is the power of lens whose focal length is 1 metre.convex lens has positive power while concave lens has negative</marquee>$

$\huge\star\pink{thanks\:}$