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27 March, 17:01

The critical angle at the boundary between a ruby and the air is 34.6º. Use this to calculate the refractive index of this ruby. Give your answer to

two decimal places.

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Answers (1)
  1. 27 March, 18:57
    0
    Answer:1.8

    Explanation:

    Critical angle=c=34.6

    Refractive index = n

    n=1/sinc

    n=1/sin34.6

    n=1/0.5678

    n=1.8

    Refractive index is 1.8
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