Question

define power of lens.power of lens is +1.D what does it mean . which type of lens​

Answer 1

Answer:

P=f1=1D. Power of the lens is the ability of a lens to converge the rays falling on it. One dioptre is the power of the lens whose focal length is 1m.

Answer 2

Answer:

P=f1=D. Power of the lens is the ability of lens to converge the rays falling on it .One dioptre is the power of lens whose focal length is 1m