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I Double slit experiment question

  1. Jul 26, 2016 #1
    What is detected on the second screen if after a photon went through the slits but before it hits the second screen, the screen with slits is removed (or both slits are closed)?
  2. jcsd
  3. Jul 26, 2016 #2


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    The photon is not otherwise affected if it has already passed the first screen.
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