Two sets of parallel waves, with the same wavelength but different initial phase

Question

Two sets of parallel waves, with the same wavelength but different initial phases, are directed at a barrier. Each wave is incident ona single tiny hole in the barrier, as shown in the diagram, where can assume the lines represent the holes therefore act as sources of s out and interfere with each other you ks of the waves, The two al waves, which spread Determine what kind of interference occurs at each labeled point, and sort the points by whether they correspond to regions of completely constructive interference, completely destructive interference, or in-between Constructive Destructive interference interference In-between DE F A C EB

Explanation / Answer

where peak meets -> constructive interfereence

where both have zero that is destructive.

all else are in in-between.

Constructive -> A

Desctructive -> C

in-between -> B, D, E , F

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