Whilst going through 'A brief history of time', I faced difficulty in understanding the two slit experiment. How can an individual electron cause fringes on screen? I was unable to understand it? Please explain it simply.

  • $\begingroup$ One electron produce a single spot on the screen. You get fringes only when many electrons past. However, there are no interactions between electrons. To explain why that happens is very difficult and there are many interpretations. One of them is the Many-World interpretation. $\endgroup$ – freude Apr 5 '16 at 15:32
  • $\begingroup$ That why has been teasing me brother $\endgroup$ – sanyam sharma Apr 5 '16 at 15:35
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    $\begingroup$ The interference pattern that appears even with only one photon passing through the setup at any time was the exact cause of the acceptance of the wave theory of light. That electrons behave the same implies they can't be thought of as particles in the classical sense. This has been asked in some form or another many times. $\endgroup$ – G_H Apr 6 '16 at 10:54
  • $\begingroup$ Questions and their answers of interest: physics.stackexchange.com/questions/238855/… physics.stackexchange.com/questions/35328/… $\endgroup$ – G_H Apr 6 '16 at 11:01

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