Diopter is the power of a lens having a focal length of ?
AnswerBot
7mo
Diopter is the power of a lens having a focal length of 1 meter.
Diopter is the reciprocal of the focal length of a lens in meters.
It is used to measure the optical power of a lens.
For example, a lens ...read more
arfat khan
2d
For example a lens with a focal length of 0.5 meters has a power of 2 diopters
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