Question

define 1 dioptre of power of lens​

Answer 1

A dioptre is a unit of measurement of the optical power of a lens or curved mirror, which is equal to the reciprocal of the focal length measured in metres. 1 dioptre = 1 m−1. It is thus a unit of reciprocal length

☺️ThAnKs●●

@ArJuN$◆◆❤️❤️

Answer 2

A dioptre is a unit of measurement of the optical power of a lens or curved mirror, which is equal to the reciprocal of the focal lenght measured in meters.
1 dioptre = 1 m^-1.

hole it helped u...☺️☺️