Question

define the power of lens ​

Answer 1

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

Have a nice day my friend.

Answer 2

heya here i m with your answer.

ANSWER

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" SI unit of length is metre(m).

HOPE IT HELPS U .

HAVE A NICE DAY ｡◕‿◕｡