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Geometrical Optics question

2021 · 25 Jul · Shift 2 · Q61
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  5. /2021 · 25 Jul · Shift 2 · Q61

Geometrical Optics question

2021 · 25 Jul · Shift 2 · Q61

JEE MainPhysicsGeometrical OpticsMCQ+4 / −1
A ray of light entering from air into a denser medium of refractive index 43{4 \over 3}34​, as shown in figure. The light ray suffers total internal reflection at the adjacent surface as shown. The maximum value of angle θ\thetaθ should be equal to : JEE Main 2021 (Online) 25th July Evening Shift Physics - Geometrical Optics Question 136 English
  1. A
    sin⁡−173{\sin ^{ - 1}}{{\sqrt 7 } \over 3}sin−137​​
  2. B
    sin⁡−154{\sin ^{ - 1}}{{\sqrt 5 } \over 4}sin−145​​
  3. C
    sin⁡−174{\sin ^{ - 1}}{{\sqrt 7 } \over 4}sin−147​​
  4. D
    sin⁡−153{\sin ^{ - 1}}{{\sqrt 5 } \over 3}sin−135​​
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