Question

The angle of polarisation for any medium is ${60}^{\circ }$. What will be critical angle for this

• A. ${\sin }^{-1}\sqrt{3}$
• B. ${\tan }^{-1}\sqrt{3}$
• C. ${\cos }^{-1}\sqrt{3}$
• D. ${\sin }^{-1}\left(\frac{1}{\sqrt{3}}\right)$

Answer 1

The correct option is D ${\sin }^{-1}\left(\frac{1}{\sqrt{3}}\right)$