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Homework Help: Plotting reflection coefficient

  1. Mar 3, 2016 #1
    1. The problem statement, all variables and given/known data
    plot the magnitude |r| of the reflection coefficient as a function of incident angle from 0 to 90 degrees with a step size of 1 degree for the following cases: (ill only post one)

    A transverse electric plane wave in incident from air to glass

    2. Relevant equations
    r = (n1cosθi - n2cosθt)/ (n1cosθi + n2cosθt)

    3. The attempt at a solution
    I was just going to plot r vs degrees but i only know the incident angles, 0 though 90. What i do about the other angle?
    I'm currently trying to plot it in excel. I think he expects us to plot it in matlab but i have no experience with matlab.
  2. jcsd
  3. Mar 3, 2016 #2
    i think i solved it. i can just use snells law and figure out the angle.
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