The refractve index of a glass is 1.520 ...

The refractve index of a glass is 1.520 for red light and 1.525 for blue light . Let `D_(1) and D_(2)` be the angles of minimum deviation for red light and blues light respectively in a prism of this glass. Then

`D_(1) gt D_(2)`

`D_(1) = D_(2)`

`D_(1) lt D_(2)`

`D_(1)` can be less than or greater than `D_(2)` prism

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