Question

V and fR are the focal lengths of a convex lens for violet
and red light respectively and FV and FR are the focal lengths
of concave lens for violet and red light respectively, then we
have
(a) fV < fR and FV > FR (b) fV < fR and FV < FR
(c) fV > fR and FV > FR (d) fV > fR and FV ​

Answer 1

Explanation:

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Answer 2

Answer:

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