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Solving for Intensity of Light Through a Polarizer

  1. Apr 21, 2012 #1
    1. The problem statement, all variables and given/known data
    Vertically polarized light with an intensity of 0.65 W/m2 passes through a polarizer whose transmission axis is at an angle of 30.0° with the vertical. What is the intensity of the transmitted light?

    I0 = 0.65 W/m2
    theta = 30.0 degrees


    2. Relevant equations
    I1=I0*cos^2(theta)


    3. The attempt at a solution
    I did:
    0.65 W/m2 * cos^2(30.0 degrees) and got I1 = 0.4875 W/m2, but webassign said that was wrong... What am I doing wrong?

    Thanks for any help!
     
  2. jcsd
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