NEET Physics Waves Questions Solved

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 beat/s when both the wires oscillate together would be 

(a) 0.02                                            (b) 0.03

(c) 0.04                                             (d) 0.01 

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