A student determines the velocity of sound with the help of a closed o – McqOptions

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1.	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 [RPET 2002]
A.	74.1 cm
B.	72.7 cm
C.	75.4 cm
D.	73.1 cm
Answer» B. 72.7 cm

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