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MCQEasyJEE Main 2023 · 11 April, Shift 1Prisms & Total Internal Reflection

Physics Question from JEE Main 2023 · 11 April, Shift 1

The critical angle for a denser-rarer interface is 45∘45^\circ. The speed of light in the rarer medium is 3×108 m/s3 \times 10^8 \, \text{m/s}. The speed of light in the denser medium is:

  • A

    2.12×108 m/s2.12 \times 10^8 \, \text{m/s}

  • B

    5×107 m/s5 \times 10^7 \, \text{m/s}

  • C

    3.12×107 m/s3.12 \times 10^7 \, \text{m/s}

  • D

    2×108 m/s\sqrt{2} \times 10^8 \, \text{m/s}

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