The refractive index fo 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,

Options

A. `D_(1) lt D_(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) gt D_(2)`

Answer

A

Explanation

The relation between angle of minimum deviation and refractive index is ` D = (mu-1)A`