A pipe 30 cm long is open at both ends. Which harmonic mode of the pip – McqOptions

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1.	A pipe 30 cm long is open at both ends. Which harmonic mode of the pipe is resonantly excited by a 1.1 kHz source? (Take speed of sound in air = 330 ms?1) [AMU 2002]
A.	First
B.	Second
C.	Third
D.	Fourth
Answer» B. Second

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