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Homework Help: Angle to the Normal and reflection/refraction HELP

  1. Apr 30, 2012 #1
    1. The problem statement, all variables and given/known data

    Light incident from air strikes a diamond at 30°
    a) At what angle to the normal a is the light reflected back into air?
    b) At what angle to the normal a is the light refracted inside the diamond?
    c) At what angle to the normal b is the light incident on the back side of the diamond?
    d) At what angle to the normal b is the light reflected on the back side of the diamond?
    e) at what angle to the normal b is the light refracted back into air on the back side of the diamond?

    I am given that for the diamond, n= 2.4
    The image given is attached.

    2. Relevant equations

    I thin my main question is what equation do I use? I think it is something like sinθ(n/something)

    3. The attempt at a solution

    I would really like to figure out the answers myself I think. I just need help getting started. Could you explain how to get started with this?

    Any and all help is greatly appreciated. Thank you for your time! :-)
     

    Attached Files:

    Last edited: Apr 30, 2012
  2. jcsd
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