CBSE Class 12-science Answered
Focal length of a convex lens is 25cm. Calculate the power of the lens?
Asked by Topperlearning User | 22 May, 2014, 12:59: PM
Expert Answer
Given focal length, f = 25 cm = 0.25 m
Therefore
Power, p = 1/f
= 1/0.25
= 4 D.
Answered by | 22 May, 2014, 02:59: PM
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