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CBSE Class 9 Answered

if the power of the lens is +5 diaptore what is its focal length?
Asked by | 14 Sep, 2008, 10:59: PM
answered-by-expert Expert Answer

Focal length(in m)  = 1 / Power.

use this formula and calculate.

Answered by | 15 Sep, 2008, 01:06: AM
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