Double slit - slit separation

  • #1
234
1
About how far apart can the slits get, in the double slit experiment, and still show the interference pattern?
 

Answers and Replies

  • #2
2,791
591
It should be comparable to the wavelength of the light. If you increase it to values significantly higher than that, there will be no interference pattern. In fact the pattern becomes smaller and smaller until at first your eyes and then your detectors don't have the required resolution to perceive it.
 
  • #3
jtbell
Mentor
15,663
3,733
In fact the pattern becomes smaller and smaller
More precisely, the maxima (peaks) become narrower and narrower, and spaced closer and closer together.
 

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