Two lenses in contact made of materials with dispersive power in the r – InterviewSolution

1.	Two lenses in contact made of materials with dispersive power in the ratio 2:1 behaves as an achromatic lens of focal length 10 cm. The individual focal length of the lenses are:
Answer» Two lenses in contact made of materials with dispersive power in the ratio $2 : 1$ behaves as an achromatic lens of focal length $10 cm$ . The individual focal length of the lenses are:

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