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Young's double slit angles

  1. Nov 23, 2012 #1
  2. jcsd
  3. Nov 23, 2012 #2
    This might help: The small triangle's theta refers to the top angle of the triangle, not the left one. Also, the right angle is right. By that I mean that the angle on the right side of the triangle is a 90 degree angle. This post was an excuse to say that the right angle is right.
     
  4. Nov 26, 2012 #3
    Yes I was aware of which angles where which. I just used that picture since it was easily attainable. Any hints as to starting this
     
  5. Nov 26, 2012 #4

    jtbell

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    Staff: Mentor

    Suppose you have two lines A and B that have angle θ between them.

    If you have line C parallel to A, and line D parallel to B, then C and D also have angle θ between them, right?

    Likewise, if you have line E perpendicular to A, and line F perpendicular to B, then E and F also have angle θ between them.
     
  6. Nov 26, 2012 #5

    sophiecentaur

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    Science Advisor
    Gold Member

    The phrase 'similar triangles' comes to mind and it hasn't yet been spelled out.
     
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