An achromatic prism is made by crown glass prism `(A_(c) = 19^(@))`  and flint glass prism `(A_(F)
Channel: Doubtnut
Date: 2020-08-23

An achromatic prism is made by crown glass prism `(A_(c) = 19^(@))`  and flint glass prism `(A_(F) = 6^(@))` . If  `.^(C)mu_(y) = 1.5` and `.^(F)mu_(v) = 1.66`, then resultant deviation for red coloured ray will be