How can we prove that Radius of curvature is equal to 2 times the focal length?
Asked by chinmaysr | 8th Mar, 2008, 01:13: PM
This derivation is not of your standard, even not in class-XII. So, dnt waste your time to dervie this and so important derivation for your exam.
Best of luck.
Answered by | 10th Mar, 2008, 10:51: AM
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