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The magnitude of longitudinal chromatic aberration produced by a convex lens for the pair of violet and red colours is 0.353 cm. If the focal length of the lens with respect to violet colour is 15.295 cm, the focal length of lens for red coloured rays is :
14.942 cm
15.648 cm
15.295 cm
15.118 cm

A

15.295 cm

B

15.648 cm

C

14.942 cm

D

15.118 cm

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