1.

The breaking stress of steel is 7.9xx10^9 Nm^(-2) and density of steel is 7.9xx10^3 kgm^(-3)and g = 10ms^(-2) . The maximum length of steel wire that can hang vertically without breaking is

Answer»

`10^(3)m`
`10^(4)m`
`10^(2)m`
`10^(5)m`

Answer :4


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