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Polarization by Reflection

  1. Feb 9, 2013 #1

    fkf

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    Unpolarized light falls on an angle of 37.5 ° with a plan glass surface. The reflected light polarization is examined with a Polaroid. The ratio between maximum and minimum intensity from Polaroid when it is rotated around is 4.0. Which is the refractive of index glass?

    I would like to use the equation which relates the Intensity with the incident angles with the refraction angle. But doesn't really find out how.
     
    Last edited: Feb 9, 2013
  2. jcsd
  3. Feb 9, 2013 #2

    DrDu

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    The relevant equations are Fresnel's equations:
    http://en.wikipedia.org/wiki/Fresnel_equations
    Are you sure that this question is not more apt for the homework help forum?
     
  4. Feb 9, 2013 #3

    fkf

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    Oh sorry, of course. Wont happen again. Thank you.
     
  5. Feb 11, 2013 #4

    Redbelly98

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    Since the OP has posted the question in the homework forums, I am locking this thread.
     
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