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Geometrical Optics question

2019 · 10 Apr · Shift 1 · Q50
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Geometrical Optics question

2019 · 10 Apr · Shift 1 · Q50

JEE MainPhysicsGeometrical OpticsMCQ+4 / −1
A ray of light AO in vacuum is incident on a glass slab at angle 60° and refracted at angle 30° along OB as shown in the figure. The optical path length of light ray from A to B is: JEE Main 2019 (Online) 10th April Morning Slot Physics - Geometrical Optics Question 180 English
  1. A
    2a + 2b/3\sqrt 33​
  2. B
    2a + 2b/3
  3. C
    2a + 2b
  4. D
    2 3\sqrt33​/a + 2b
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