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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_(1)ltD_(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_(1)gtD_(2)`

Text Solution

Verified by Experts

The correct Answer is:
3
`D=(mu-1)A`
For blue light `mu` is greater than that for red light,
so`,D_(2)gtD_(1)`,
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