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

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0.0615

0.024

0.031

1.60

answer is A.

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Detailed Solution

ω=μv−μrμγ−1=1.67−1.631.65−1=0.0615

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