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Unformatted text preview: destructive interFerence point so it must be the answer. Question 3 Answer: Wave 2 - Wave 1 The frst column is the same as beFore but just using the new time chosen in question 2. The beat period is the time between one destructive interFerence point and the next. So in the last column we have to choose the halF integer that is one bigger than the one we chose in question 1; the next destructive interFerence point. Here that is 1/2 + 1 = 3/2 . Question 4 Answer: Let s just do the algebra....
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- Spring '10