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Two point sources oscillating in phase- find smallest corresponding path length diff

  1. Jun 20, 2011 #1
    1. The problem statement, all variables and given/known data
    Two point sources S1 and S2, oscillating in phase send waves into the air at the same wavelength 1.98m. Given that there is a nodal point where the two waves overlap, find the smallest correspondign path length difference.

    The only given i can obtain form this is the wavelength 1.98
    i am unable to find what else is given


    2. Relevant equations[/b

    |PS2-PS1| = n(wavelength)
    n = nodal line
    3. The attempt at a solution

    I was unable to attempt at the solution due any unknown given sorry..
    if i have the givens then i can use the equation i believe and obtain the right answer
     
  2. jcsd
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