Double-slit experiment (path length)

AI Thread Summary
In a double-slit experiment, adjacent constructive and destructive interference fringes require specific path length differences. Constructive interference occurs when the path length difference is a whole number multiple of the wavelength, while destructive interference occurs at half-integer multiples of the wavelength. Understanding these conditions is crucial for analyzing interference patterns. The discussion highlights the need for clarity on how to calculate these differences for successful problem-solving. Mastering these concepts is essential for grasping the principles of wave interference.
PhysicsFTW22
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Homework Statement



In a double slit-experiment, how far apart do the path length differences have to be to get a pattern with adjacent constructive and destructive interference fringes?

I have no clue how to even begin this problem.
 
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Does anyone know this? I really need to find out :(.
 
PhysicsFTW22 said:

Homework Statement



In a double slit-experiment, how far apart do the path length differences have to be to get a pattern with adjacent constructive and destructive interference fringes?

I have no clue how to even begin this problem.

Constructive interference occurs when Δλ is a whole integer(0(central maximum),1,2,3 etc..) and destructive interference occurs when Δλ is a whole integer + half (0.5, 1.5, 2.5 etc..)

hope it helps out.
 

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