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The refractive index of the material of ...

The refractive index of the material of the prism for violet colour is 1.69 and that for red is 1.65. If the refractive index for mean colour is 1.66, the dispersive power of the material of the prism

A

0.66

B

0.06

C

0.65

D

0.69

Text Solution

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The correct Answer is:
b
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