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CBSE Class 10 Answered

the power of lens is -2D. calculate the focal length of lens
Asked by | 24 Jun, 2008, 08:27: PM
answered-by-expert Expert Answer

power of the lens reciprocal of the focal length in meters

   P = 1/f

use the formula and find the answer.

Answered by | 28 Jun, 2008, 12:57: PM

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