Two instruments having stretched strings are being played in unison . When the tension in one of the instruments is increases by ` 1% , 3` beats are produced in ` 2 s`. The initial frequency of vibration of each wire isA. `220s^(-1)`B. `320s^(-1)`C. `150 s^(-1)`D. `300 s^(-1)`

Two instruments having stretched strings are being played in unison .

1.	Two instruments having stretched strings are being played in unison . When the tension in one of the instruments is increases by ` 1% , 3` beats are produced in ` 2 s`. The initial frequency of vibration of each wire isA. `220s^(-1)`B. `320s^(-1)`C. `150 s^(-1)`D. `300 s^(-1)`
Answer» Correct Answer - D

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Two instruments having stretched strings are being played in unison . When the tension in one of the instruments is increases by ` 1% , 3` beats are produced in ` 2 s`. The initial frequency of vibration of each wire isA. `220s^(-1)`B. `320s^(-1)`C. `150 s^(-1)`D. `300 s^(-1)`

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