A solid sphere of density eta (gt 1) tim...

A solid sphere of density `eta (gt 1)` times lighter than water is suspended in a water tank by a string tied to its base as shown in fig. if the mass of the sphere is `m` then the tension in the string is given by

`((eta-1)/(eta))mg`

`eta mg`

`(mg)/(eta-1)`

`(eta-1)mg`

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