A ray of light AO in vacuum|GEOMETRICAL OPTICS|JEE MAIN 2019

JEE MAIN_2021

_S1_100419

Question

A ray of light AO in vacuum is incident on a glass slab at angle $60^{\circ}$ and refracted at angle $30^{\circ}$ along OB as shown in the figure. The optical path length of light ray from A to B is i.

Select the correct option:

$\frac{2 \sqrt{3}}{a}+2 b$

$2 a+\frac{2 b}{\sqrt{3}}$

$2 a+\frac{2 b}{3}$

2a + 2b

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Question Tags

JEE Main

Physics

Easy

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