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Question on wave length

  1. Nov 11, 2009 #1
    1. Water waves having parallel crests 2.0 cm apart pass through two openings 5.2 cm apart in a board. At a point 2.0 m beyond the board, at what angle relative to the "straight-through" direction would there be little or no wave action?
    a)closest position to the "straight through" line
    b)next closest position from the "straight through" line

    2. x=L[tex]\theta1[/tex]=L([tex]\lambda[/tex]/d)

    3. I was just wondering where to get the wave length from? Would it be 2 since it is 2cm from crest to crest? thanks
  2. jcsd
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