A pipe is open at both ends. What should be its length such that it re – McqOptions

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1.	A pipe is open at both ends. What should be its length such that it resonates a 10Hz source in the 2nd harmonic? Speed of sound in air = 340m/s.
A.	34m
B.	68m
C.	17m
D.	51m
Answer» B. 68m

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