A rectangular cavity ABCD is carved inside an equilateral

Last updated: 6/12/2023

A rectangular cavity ABCD is carved inside an equilateral prism PQR of refractive index 2 shown in the figure For a ray entering at face PQ and emerging at face PR without passing through AB and CD 53 R there will not be any effect of cavity on 8 B there may be any effect of cavity on 8 for cavity filled with water 8min 30 for cavity filled with air 8min 30 I