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The Nature of Light

  1. Apr 28, 2007 #1
    1. The problem statement, all variables and given/known data
    A single slit is illuminated with a helium-neon laser whose wavelength is 633 nm. If the slit width is 2.2 x 10 e-5 m, calculate the position of the third maximum in degrees


    2. Relevant equations

    Sin Theta(m) = (m + 0.5) Lambda/w

    3. The attempt at a solution

    Sin Theta(3) = (3 + 0.5)(633 x 10 e-9)/2.2 x 10 e-5
    =(3.5)(633 x 10 e-9)/2.2 x 10 e-5
    =0.1

    Theta(3) = sin-1(0.1)
    =5.7 degrees

    Therefore, the position of the third maximum is at 5.7 degrees


    Does this seem right to anybody?
     
  2. jcsd
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