Define 1 dioptre of power of a lens.



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.

  1. Class 10
  2. Chapter 10 Class 10 - Light - Reflection and Refraction (Term 1)

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CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo