A ray of light entering... | Ray Optics | JEE-MAIN 2021

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JEE MAIN 2021

25-07-21 S2

Question

A ray of light entering from air into a denser medium of refractive index $\frac{4}{3}$, as shown in figure. The light ray suffers total internal reflection at the adjacent surface as shown. The maximum value of angle $\theta$ should be equal to :

Select the correct option:

A

$\sin ^{-1} \frac{\sqrt{7}}{3}$

B

$\sin ^{-1} \frac{\sqrt{5}}{4}$

C

$\sin ^{-1} \frac{\sqrt{7}}{4}$

D

$\sin ^{-1} \frac{\sqrt{5}}{3}$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

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