A pipe closed at one end vibrating in 5th overtone is in unison with – McqOptions

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1.	A pipe closed at one end vibrating in 5th overtone is in unison with open pipe vibrating in its 5th overtone. The ratio of lc : lo is?
A.	12 : 11
B.	1 : 1
C.	11 : 12
D.	5 : 1
Answer» D. 5 : 1

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