Question

Define 1 diopter of power of lens.​

Answer 1

Answer:

• 1 dioptre of power of a lens is described as the unit of measurement of the optical power of a lens or curved mirror equivalent to the reciprocal of focal length (f). Measurement of the focal length in a meter. The SI unit of power of lens is dioptre whose focal length is one meter, which is denoted by the letter D.

Answer 2

Explanation:

power is the degree of convergence or divergence of lens. si unit of power is Dioptre .

1D is power of lens whose focal length is 1 m

P=1/ f in metre

focal length of convex lens is always positive and focal length of concave lens is always negative