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A student determines the velocity of sound with the help of a closed organ pipe. If the observed length for fundamental frequency is 24.7 m , the leng

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A student determines the velocity of sound with the help of a closed organ pipe. If the observed length for fundamental frequency is 24.7 m , the length for third harmonic will be
A. `74.1cm`
B. `72.7 cm`
C. `75.4 cm`
D. `73.1 cm`
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Correct Answer - A
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