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this is a really nice question on single slids. I can do part a), since the Intensity is proportional to [f(x)]^2.

However, I am completely stuck on part b. If the wave alters in x direction (not uniform) I don't understand how I am supposed to calculate the resulting Intensities in y direction on the path of the dog. Am I supposed to build the time average on each point? If anyone could give me a hint that would be amazing. Thank you!

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# Homework Help: Nice question on single slits

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