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An aluminium wire of length 0.6 m and cr...

An aluminium wire of length 0.6 m and cross sectioal are and length 0.866 m .The compound wire is loaded with 10kg.Find the lowest frequency of exciation for which the joint In the the wire.The density of alumimium is 2600 kg `m^(-3)` and that of steel is 7800 `kgm^(-3)`

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