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Homework Help: Light through a prism

  1. Apr 22, 2014 #1
    How to draw ray daigrams for prisms.
     
  2. jcsd
  3. Apr 22, 2014 #2

    andrevdh

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    Homework Helper

    At the air to glass interface (ray entering the prism) the ray refracts towards the normal and again away from the normal when it exits (ray travelling from glass to air). If one knows the refractive index the angle of refraction can be calculated.
     
  4. Apr 22, 2014 #3
    Use Snell's law.
     
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