The angle of polarization for any medium is $$60^{\circ\ }$$, what will be critical angle for this :

A

$$\sin^{-1}\left(\sqrt{3}\right)$$

B

$$\tan^{-1}\left(\sqrt{3}\right)$$

C

$$\sin^{-1}\left(\frac{1}{\sqrt{3\ }}\right)$$

D

$$\tan^{-1}\left(\frac{1}{\sqrt{3\ }}\right)$$