Two identical piano wires kept under the same tension T have a fundame – McqOptions

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1.	Two identical piano wires kept under the same tension T have a fundamental frequency of 600 Hz. The fractional increase in the tension of one of the wires which will lead to occurrence of 6 beats/s when both the wires oscillate together would be
A.	0.02
B.	0.03
C.	0.04
D.	0.01
Answer» B. 0.03

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