The Polarising Angle in Air for Diamond Is 67 $\degree$ Calculate the Critical Angle Inside the Diamond for Total Internal

Multiple Choice

The polarising angle in air for diamond is 67.4 $\degree$ .Calculate the critical angle inside the diamond for total internal reflection.

A) 32.6 $\degree$
B) 22.6 $\degree$
C) 24.6 $\degree$
D) 28.6 $\degree$
E) 48.8 $\degree$