Define 1 dioptre of power of a lens.
1 dioptre is defined as the power of a lens of focal length 1 metre.
∴1 D = 1 m-1
Power of lens is defined as the reciprocal of its focal length. Where P is the power of a lens of focal length f in metres, then
The S.I. unit of power of a lens is Dioptre. It is denoted by D.
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Welcome to the NCERT Solutions for Class 10 Science - Chapter . This page offers a step-by-step solution to the specific question from Excercise 4 , Question 1: Define 1 dioptre of power of a lens.....
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