A right angled glass prism u 3 is kept on a horizontal

Last updated: 6/25/2023

A right angled glass prism u 3 is kept on a horizontal surface in contact with a vertical plane mirror as shown A ray of light travelling horizontally retraces its path when transparent liquid of refractive index u is filled in the space between prism and mirror Refractive index u of the liquid is 6 1 2 5 6 45 45 2 5 3 4 F