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The frequencies of first overtones of an...

The frequencies of first overtones of an open and a closed pipes are equal. What is the ratio of their lengths?

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Let us consider, `l_0` be the length of an open pipe and `l_c` be the length of a closed pipe. `therefore(2v)/(2l_0)=(3v)/(4l_c)thereforel_0:l_c=4:3`
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