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## Homework Statement

Two identical piano wires have a fundamental frequency of 600 Hz when kept under the same tension.What fractional increase in the tension of wire will lead to the occurrence of 6.0 beat/sec when both wires oscillate simultaneously?

## Homework Equations

f

_{beat}=f

_{2}-f

_{1}

f=nv/2L

v=[tex]\sqrt{}T/\mu[/tex]

## The Attempt at a Solution

I used f

_{beat}=f

_{2}-f

_{1}to solve for f

_{2}and ended up with 606Hz. I am really confused as to how to proceed. We were told that the answer should be 0.02 but I have know idea how to get that. Can you please give me a hint as to how to begin?

Thank you.