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Homework Help: Different views

  1. Aug 18, 2005 #1
    why is electromagnetic radiation considered as wave motion according to the classical theory and as a stream of particles according to the quantum theory?
    these two views are so different, so which one is right?
     
  2. jcsd
  3. Aug 18, 2005 #2

    TD

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    Homework Helper

    Both are actually. It appears, simply put, that it sometimes 'behaves' as a particles and sometimes as waves.
    Take light for example, we know it consists of photons but Young's (interference) experiment clearly showed that it has a wave-nature as well.
     
  4. Aug 18, 2005 #3
    A good way to understand this is probably to read up about the wave/partical duality. This should be applicable for all text books.

    Like TD said, radiation, behaves like waves and particles. Its a parradox that is very important in modern physics. Its not much help but its something tht needs to read about. I hope I have pointed you in the right direction.

    hhh79bigo
     
  5. Aug 18, 2005 #4

    HallsofIvy

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    There is no difference and it is not a matter of one being right. At that size, there is no clear distinction between "particles" and "waves"- even electrons can be thought of as either particles or waves depending on which is better for the particular problem.
     
  6. Aug 18, 2005 #5
    hmm... i see~
    thanks! :)
     
  7. Aug 18, 2005 #6
    very good! i get some new ideas
     
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