Define 1 dioptre of power of a lens.

 

Answer

Since, Power of a lens = 1/ Focal length of the lens

1 dioptre is defined as power of a lens whose focal length is 1 metre.

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CA Maninder Singh is a Chartered Accountant for the past 13 years and a teacher from the past 17 years. He teaches Science, Economics, Accounting and English at Teachoo