mu_a,mu_b,mu_c are refractive indices of the media A, B, c respectively, so that mu_a gt mu_b gt mu_c. The critical angle arises when a ray of light travels from

mu_a,mu_b,mu_c are refractive indices of the media A, B, c respectivel

1.	mu_a,mu_b,mu_c are refractive indices of the media A, B, c respectively, so that mu_a gt mu_b gt mu_c. The critical angle arises when a ray of light travels from
Answer» C to A C to B B to A A to C Answer :D