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Homework Help: Multiple slits diffraction

  1. Oct 18, 2004 #1
    We had a lab on diffraction (Young's experience and more) and we are now asked what would be better to decompose a non-monochromatic light: a denser slitted sheet or a less dense one?

    I really don't know how to solve this problem... it looks like I need more formulas than what I've currently got...

    Any help is appreciated.
  2. jcsd
  3. Oct 18, 2004 #2

    Doc Al

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    Staff: Mentor

    Monochromatic light will produce a single diffraction maxima for each order of diffraction. (One on each side, that is.) Non-monochromatic light will produce a spectrum of maxima for each order.

    So which grating would better keep different order spectra from overlapping?
  4. Oct 18, 2004 #3
    I guess a dense grating would be better since we would get narrower stripes for each color thus minimizing overlapping and color addition... Am I right?
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