30 Light is incident normally on face AB of a prism as shown

Last updated: 6/26/2023

30 Light is incident normally on face AB of a prism as shown in figure A liquid of refractive index u is placed on face AC of the prism the prism is made of glass of refractive index The limit of 1 for which total internal reflection takes place on face AC is A 3 4 3 3 60 Liquid 90 B 30 3 2 2 4 2 C 3 3 4 7 3 4