an achromatic convergent doublet of two lenses in contact has a power – InterviewSolution

1.	an achromatic convergent doublet of two lenses in contact has a power + 2 d the convex lens has a power + 5D the ratio of dispersive power of the convergent and divergent lense is
Answer» an achromatic convergent doublet of two lenses in contact has a power + 2 d the convex lens has a power + 5D the ratio of dispersive power of the convergent and divergent lense is

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