Question

difine 1 diopter power of leans
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Answer 1

hey mate . here is your answer ......^  - ^

               a dioptre  (british spelling ) or a diopter ( amerian spelling ) is a unit of measurement of a optica power of a lens or curved mirror.  which is the reciprocal of the focal lenght measured in metres 1  dioptre = 1m per sec. for example >a 3- dioptre lens brings parellel rays of light to focus at 1upon3  metre .                      

                   hope u get it            

             plzz mark brainliest ...^ - ^

Answer 2

Explanation:

$1dioptre \: is \: power \: of \: lens \: \\ whose \: focal \: length \: is \: 1cm \: \\ \\ 1d= \frac{1}{1m}$

$hope \: my \: answer \: helps \: you$