A wave of amplitude 0.40 m interferes with a second wave of amplitude 0.25 m traveling in the same direction. (a) What is the largest resultant amplitude that can occur, and under what conditions will this maximum arise? m The two waves interfere destructively. The two waves interfere constructively. (b) What is the smallest resultant amplitude that can occur, and under what conditions will this minimum arise? m The two waves interfere destructively. The two waves interfere constructively.
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This happens when the two waves interfere constructively, i.e., when the peaks of the two waves coincide. So, the maximum amplitude is 0.40 m + 0.25 m = 0.65 m. Show more…
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