exlain power of lens

Asked by  | 28th Jul, 2008, 10:58: AM

Expert Answer:

Optical power (dioptric power or refractive power) is the degree to which a lens or mirror converges or diverges light. It is equal to the reciprocal of the focal length of the device. The dioptre is the most common unit of measurement of optical power.

Answered by  | 28th Jul, 2008, 09:32: PM

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