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The dispersive power (w) of the material...

The dispersive power (w) of the material of a prism is (where symbols have their usual meanings)

A

`omega = (delta _V +delta_ R) / 2`

B

`omega = (delta _V +delta_ R )/ [(delta _V +delta_ R )/ 2] `

C

`omega =(delta_R *delta_V )/[(delta _V +delta_ R) / 2]`

D

`omega= (delta_V - delta_R) / [(delta _V +delta_ R) / 2]`

Text Solution

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The correct Answer is:
D
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