57 The right angled prisms of retr indices and are fitted

Last updated: 6/1/2023

57 The right angled prisms of retr indices and are fitted together as shown in the fig 2 67 If a ray passes through the prisms without suffering any devaiation then find the relation between the three refractive indices of the prism D B 1 4 4 B E 2 1 4