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The focal lengths of convex lens for red...

The focal lengths of convex lens for red and blue light are 100 cm and 96.8 cm respectively. The dispersive power of material of lens is

A

`0.325`

B

`0.0325`

C

`0.98`

D

`0.968`

Text Solution

Verified by Experts

The correct Answer is:
b
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