CBSE Class 10 Answered
exlain power of lens
Asked by | 28 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 | 28 Jul, 2008, 09:32: PM
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