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A piano wire weighing 6.00 g and having ...

A piano wire weighing 6.00 g and having a length of 90.0 cm emits a fundamental frequency corresponding to the "Middle C" (v = 261.63 Hz). Find the tension in the wire.

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The correct Answer is:
`225 N`
`l = 90 cm = 0.9m`
`mu = (4)/(90) gm//cm`
`= (4)/(900) Kg//m`
`f = 125`
`f = (1)/(2L) sqrt((T)/(mu))`
`125 = (1)/(2 xx 0.9) sqrt((T xx 900)/(4))`
`T = 225N`
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