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A copper wire is held at the two ends by...

A copper wire is held at the two ends by rigid supports. At `30^@C,` the wire is just taut with negligible tension, Find the speed of transverse wave in the wave at `10^@C.` Given : Coefficient of linear expansion is `1.7 xx 10^(-5)l^@C` Young's modulus `=1.3 xx 10^(11)"N/m"^2` Density `=9 xx 10^(3)" kg m"^(-3).`

Text Solution

Verified by Experts

`v=sqrt((Y alpha Delta theta)/(rho))`
`=sqrt((1.3xx10^(11)xx1.7xx10^(-5)xx(30-10))/(9xx10^(3)))=70m//s`
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