How 1 dioptre= 100/cm. Plz derivate it.
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Explanation:
it's a Predefined unit u can't derive it.
Answered by
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Answer:
D is diopters and F is the focal length
in centimeters. For nearsighted, the diopter has minus sign on your prescription and is equal to the reciprocal of the focal length measured in 1 meter (100 cm)
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