Anukruti posted an Question
December 18, 2020 • 02:55 am 30 points
  • IIT JAM
  • Geology (GG)

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    Rahul kumar best-answer

    Answer: Critical angle = 26.39° Sin (critical angle) = V1 / V2 Sin (critical angle) = 2000 / 4500 Critical angle = arcsin (20/45) Critical angle = arcsin (4/9) = 26.39°

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