A glass prism of refractive index 1 5 is immersed in 4 a

Last updated: 6/26/2023

A glass prism of refractive index 1 5 is immersed in 4 a liquid of refractive index as shown in the figure 3 A light beam incident normally on the face PQ is totally reflected to reach the face QR if 1 sin 0 8 9 1 5 4 3 2 sin0 8 9