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Homework Help: Fraunhofer diffraction, multiple slits

  1. Jun 29, 2011 #1
    1. The problem statement, all variables and given/known data

    A system consisting of 5-slit (completely identical) that the distance between their centres, d, is four times the width of a slit, b.

    Calculate the relation between the major maximum at the center and the next maximum (can be given that position of the maximum is between the two minima)

    2. Relevant equations

    I = E0^2(sin^2(beta)/beta^2)*(sin^2(5gamma)/sin^2(gamma))

    3. The attempt at a solution

    Tried some stuff with finding out the two minima and receiving 3(lambda)/2b but then when placing it inside the equation I couldn't continue.
  2. jcsd
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