Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Wave Optics

Question:

The Brewster's angle for air to water transition is (Refractive index of water $=\frac{4}{3}$)

Options:

$\sin ^{-1}\left(\frac{4}{3}\right)$

$\sin ^{-1}\left(\frac{3}{4}\right)$

$\tan ^{-1}\left(\frac{4}{3}\right)$

$\tan ^{-1}\left(\frac{3}{5}\right)$

Correct Answer:

$\tan ^{-1}\left(\frac{4}{3}\right)$

Explanation:

The correct answer is Option (3) → $\tan ^{-1}\left(\frac{4}{3}\right)$

By Brewster’s law

$i_c=\tan ^{-1}(\mu)$

$i_c=\tan ^{-1}\left(\frac{4}{3}\right)$