Anukruti posted an Question
December 20, 2020 • 03:48 am 30 points
  • IIT JAM
  • Geology (GG)

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    Rahul kumar best-answer

    Answer: RI= 1.639 Refractive index of any medium is defined by the ratio of velocity of light in vaccum and velocity of light in that medium. Given that, velocity of light is decreased by 39% in mineral. So, RI = V / (V - 0.39V) = V / 0.61V = 1.639 RI = 1.639

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