what is 1dioptre of power
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Power of lens is the reciprocal of the
focal length.
Power of lens P = 1 / f ( in m ) or
P = 100 / f ( in cm ) .
The unit of power is called Diopter .
===> 1 diopter = 1 m to the power - 1 .
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♥ Dioptre is usually reffered to as lens power. A dioptre is the measurement of power of lens or a curved mirror which is equal to the reciprocal of focal length in metres. 1 Dioptre is the SI unit of power of lens whose focal length is 1 metre. It is denoted by 'D'. OR When the focal length of the lens is 1 metre the power of lens is 1 Dioptre.♥
⭐Power of lens = 1/f (in m)
⭐Power of lens = 100/f (in cm)
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