gc textbook chapter 12 Sound (id: dd317aeca)

本题目来源于试卷: gc textbook chapter 12 Sound，类别为 通用国际物理

[填空题]
Two sound waves have equalj d,al3,)p q: ) bigm3as34txgwo3vc w displacement amplitudes, but one haw9c :zg ocx:bl(5)c rss twice the frequency of the(rxz):9o blgcw c5 s:c other. What is the ratio of their intensities?   

参考答案: 4±2%


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