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The refractive index of a particular mat...

The refractive index of a particular material is 1.67 for blue light, 1.65 for yellow light and 1.63 for red light. The dispersive power of the material is

A

0.031

B

1.60

C

0.0615

D

0.024.

Text Solution

Verified by Experts

The correct Answer is:
C

Dispersive power =`(mu_(b)-mu_(r))/(mu_(y)-1)`
=`(1.67 -1.63)/(1:65-1)=(0.04)/( 0.64)`=0.0615
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