Double-slit: what causes the altering problem

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The discussion focuses on the factors that alter the interference pattern observed in the double-slit experiment, beyond simple wave interference. Participants explore how variations in laser intensity affect brightness but not the pattern itself. The impact of slit separation on the interference pattern is also considered, noting that it changes the spacing but not the fundamental nature of the pattern. The question of how a single slit would influence the observed phenomena is raised, prompting further inquiry into the nature of wave behavior. Overall, the conversation emphasizes the complexity of factors influencing the double-slit experiment results.
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Homework Statement



It should be obvious that the simple interference of two waves is not the only that you have seen with the double slit. What other phenomenon is altering your pattern?

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The Attempt at a Solution



I'm assuming that the intensity of the light of the laser, but that would not alter the pattern, it would just be less of it. Also the slit separation would contract/expand the pattern, but it would essentially be the same.
 
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