Question

The critical angle of a certain medium is $si{n}^{-1}(\frac{3}{5})$. The polarizing angle of the medium is

• A. $si{n}^{-1}(\frac{4}{5})$
• B. $ta{n}^{-1}(\frac{5}{3})$
• C. $ta{n}^{-1}(\frac{3}{4})$
• D. $ta{n}^{-1}(\frac{4}{3})$

Answer 1

Answer: (B)

Palarising angle,
$\tan i=\frac{1}{\sin C}$
$\therefore \cot i=\sin \left({\sin }^{-1}\left(\frac{3}{5}\right)\right)$
or $\tan i=\frac{5}{3}$
or $i={\tan }^{-1}\left(\frac{5}{3}\right)$