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In a sonometer experiment, the density of material of the wire used in `7.5xx10^(3)kg//m^(3)`. If the stress of the wire is `3.0xx10^(8)N//m^(2)`, find out the speed of transvers waves in the wire. |
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Answer» Here, `rho=7.5xx10^(3)kg//m^(3)`, Stress `=3.0xx10^(8)N//m^(2)` If A is area of cross section of the wire, then tension in wire, `T=stressxxarea=3.0xx10^(8)A N` Mass per unit length of wire, `m=Axx1xxrho=Axx7.5xx10^(3)kg//m` `v=sqrt((T)/(m))=sqrt((3.0xx10^(8)A)/(Axx7.5xx10^(3)))=sqrt(4xx10^(4))=200m//s` |
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