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2D Wave interfereance

  1. Dec 30, 2009 #1
    1. The problem statement, all variables and given/known data
    In a large water tank experiment, water waves are generated
    with straight, parallel wave fronts, 3.00 m apart. The
    wave fronts pass through two openings 5.00 m apart in a
    long board. The end of the tank is 3.00 m beyond the board.
    Where would you stand, relative to the perpendicular
    bisector of the line between the openings, if you want to
    receive little or no wave action?


    2. Relevant equations
    xn represent the horizontal distance between the perpendicular bisector drawn to the line joining the two sources and the nth nodal line
    λ=(Xn/L)(d/n-0.5)

    Answer is 1.25m

    3. The attempt at a solution
    λ=3.0m
    L=3.0m
    d=5.0m

    I got stuck since i don't know which nodal line(n)
     
  2. jcsd
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