The refractive indices of the material o...

The refractive indices of the material of a lens for violet, yellow and red colours of light are 1.66, 1.64 and 1.62 respectively. The mean focal length of the lens is 10 cm. What is the chromatic aberration of the lens between the violet and the red colours ?

A

0.625 cm

B

0.125

C

0.02 cm

D

0 cm

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The correct Answer is:

A

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