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What is path length difference?

  1. Apr 20, 2006 #1
    My text keeps referring to it but I have no idea what it refers to.
  2. jcsd
  3. Apr 20, 2006 #2


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    Staff: Mentor

    Depends on the context. But in the context of integrals, you can often have your integration follow different paths for the convenience of the math.
  4. Apr 20, 2006 #3


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    Staff Emeritus
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    Gold Member

    In physics when studying interference patterns it is simply the difference in distance travelled between two waves or secondary wavelets/

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