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Dispersion of Light

Two thin pris...

Question

Two thin prisms of flint glass, with refracting angles of $6^{o}$ and $8^{o}$ respectively, possess disperse powers in the ratio

A

4 : 3

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B

3 : 4

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C

1 : 1

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D

9 : 16

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Solution

The correct option is C 1 : 1
Dispersive power = $\frac{μ_{v} - μ_{r}}{μ - 1}$
Since, it does not depend on angle of prism, dispersive power f both prism will be same.
Therefore, C is correct option.

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