A thin prism of angle `15^(@)` made of glass of refractive index `mu_(1)=1.5` is combined w
Channel: Doubtnut
Date: 2020-01-19

A thin prism of angle `15^(@)` made of glass of refractive index `mu_(1)=1.5` is combined with another prism of glass of refractive index `mu_(2)=1.75`. The combination of the prism produces dispersion without deviation. The angle of the second prism should be