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When is light totally reflected in a diamond?

  1. Apr 1, 2008 #1
    When is light totally internally reflected in a diamond?

    I thought it was at the critical angle of 24.5?
    Last edited: Apr 1, 2008
  2. jcsd
  3. Apr 1, 2008 #2
    But what angle should equal the critical angle for total internal reflection?
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