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Homework Help: Deviation in refraction and TIR

  1. Dec 22, 2017 #1
    1. The problem statement, all variables and given/known data
    Light is incident from glass (n=1.5) to water (n=1.33). Find out the range of angle of deviation for which there are two angles of incidence.

    2. Relevant equations
    Snell's Law

    3. The attempt at a solution
    The lowest value of angle of deviation would be 0° when i = 0. But, I am unable to find the highest value. Would it be during refraction or TIR?
  2. jcsd
  3. Dec 23, 2017 #2
    Someone please help.
  4. Dec 27, 2017 #3


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    Homework Helper

    Calculate a couple of angles of deviation - perhaps with angle of incidence 20 and 40 degrees (assuming they are both below the TIR situation) - and then you may see which way to proceed.
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