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The refractive index of a glass is 1.520...

The refractive index of a glass is 1.520 for red light and 1.525 for blue light. Let `D_1` and `D_2` be angles of minimum deviation for red and blue light respectively in a prism of this glass. Then,

A

`D_1ltD_2`

B

`D_1=D_2`

C

`D_1` can be less than or greater than `D_2` depending upon the angle of prism

D

`D_1gtD_2`

Text Solution

Verified by Experts

The correct Answer is:
A
For a thin prism, `D=(mu-1)A`
Since `lamda_bltlamda_rimpliesmu_rltmu_bimpliesD_1ltD_2`
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