1.

A metal rope of density 6000"kgm"^(-3) has breaking stress 9.8 xx 10^(8) Nm^(-2). This rope is used to measure the depth of the sea. Then the depth of the sea that can be measured without breaking is -----

Answer»

`10 XX 10^(3)` m
`20 xx 10^(3)` m
`30 xx 10^(3)` m
`40 xx 10^(3)` m

Answer :B


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