In a sonometer experiment, the density of the material of the wire used is `7.5xx10^(3)kgm^(-3)`. If the stress of the wire is `3.0xx10^(8)Nm^(-2)`, find out the speed of the transverse wave in the wire.

Explanation

Let A be the are of cross-section of the wire.
Tension in the wire,
T=stress `xx` area
`=3.0xx10^(8)xx` Newton
Mass per unit length,
`=Axx7.5xx10^(3)kgm^(-1)`
Speed, `v=sqrt((T)/(m))=sqrt((3.0xx10^(8)xxA)/(Axx7.5xx10^(3)))=200ms^(-1)`.