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Geometrical Optics question

2022 · 29 Jun · Shift 2 · Q47
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  5. /2022 · 29 Jun · Shift 2 · Q47

Geometrical Optics question

2022 · 29 Jun · Shift 2 · Q47

JEE MainPhysicsGeometrical OpticsMCQ+4 / −1
The speed of light in media 'A' and 'B' are 2.0×10102.0 \times {10^{10}}2.0×1010 cm/s and 1.5×10101.5 \times {10^{10}}1.5×1010 cm/s respectively. A ray of light enters from the medium B to A at an incident angle 'θ\thetaθ'. If the ray suffers total internal reflection, then
  1. A
    θ=sin⁡−1(34)\theta = {\sin ^{ - 1}}\left( {{3 \over 4}} \right)θ=sin−1(43​)
  2. B
    θ>sin⁡−1(23)\theta \gt {\sin ^{ - 1}}\left( {{2 \over 3}} \right)θ>sin−1(32​)
  3. C
    θ<sin⁡−1(34)\theta \lt {\sin ^{ - 1}}\left( {{3 \over 4}} \right)θ<sin−1(43​)
  4. D
    θ>sin⁡−1(34)\theta \gt {\sin ^{ - 1}}\left( {{3 \over 4}} \right)θ>sin−1(43​)
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