NEET
- Exam
- NEET
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- Physics
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- Wave Optics
NEET · Physics · Wave Optics
A transparent medium shows relation between i and r as shown. If...
A transparent medium shows relation between and as shown. If the speed of light in vacuum
is the Brewster angle for the medium is
is the Brewster angle for the medium is
Options
- A(60^{\circ})
- B(30^{\circ})
- C(90^{\circ})
- D(45^{\circ})
Correct answer
A. (60^{\circ})
Step-by-step solution
(A)By Brewster's law, (\mathrm{n}=\tan \theta_{p})Also (n=\frac{\sin i}{\sin r})But (\frac{\sin i}{\sin r}=\frac{1}{\text{ slope }}) of given graph(\frac{\sin i}{\sin r}=\frac{1}{\tan 30^{\circ}}=\frac{1}{\frac{1}{\sqrt{3}}}=\sqrt{3})(\therefore \tan \theta_{p}=\mathrm{n}=\sqrt{3})(\theta_{p}=\tan ^{-1}(\sqrt{3})=60^{\circ})