The length of the string of a musical instrument is \( 90 \mathrm{~cm} \) and has a fundamental frequency of \( 120 \mat…
Q1
The length of the string of a musical instrument is \( 90 \mathrm{~cm} \) and has a fundamental frequency of \( 120 \mathrm{~Hz} \). Where should it be pressed to produce fundamental frequency of \( 180 \mathrm{~Hz} \) ?
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