A ray of ligth is incidnet from a denser to rarer medium. The critical angle for total internal reflection is theta_i C. And the Brewster.s angle of incidence is theta_(iB). Such that (sin theta_(iC))/(sin theta_(iB))= eta. The relative refractive index of the two media is.

A ray of ligth is incidnet from a denser to rarer medium. The critical

1.	A ray of ligth is incidnet from a denser to rarer medium. The critical angle for total internal reflection is theta_i C. And the Brewster.s angle of incidence is theta_(iB). Such that (sin theta_(iC))/(sin theta_(iB))= eta. The relative refractive index of the two media is.
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