File:Backtrack Young maxima.svg

Note: One might imagine that by binding a bright spot on a detector screen, marking that location, moving the detector screen in or out and marking the position of the same maximumum, one could then connect the two points and derive a line that would point back to the slit that had emitted the protons landing at the bright spot in question. However, as this diagram shows. the line would not point to a slit, but (when combined with a point equally removed from the center of the interference pattern) to a point behind the screen where the double slits are.

The source information for the original svg version of this image says:

DescriptionBacktrack Young maxima.svg	A vectorized version of a sketch made by Thomas Young to illustrate the two-slit diffraction of light. Narrow slits at A and B act as sources, and waves interfering in various phases are shown at C, D, E, and F. Young presented the results of this experiment to the Royal Society in 1803.
Date	3 August 2007
Source	Own work, based on the public-domain image Young Diffraction.png at en.wikipedia.org
Author	Sakurambo
Permission (Reusing this file)	Public domainPublic domainfalsefalse I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
Other versions	Young Diffraction.png

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