A sphere of density rho is half submerge...

A sphere of density `rho` is half submerged in a liquid of density `sigma` and surface tension T. The sphere remains in equilibrium. Find radius of the sphere (assume the force due to surface tension acts tangentially to surface of sphere)

`sqrt(T/((rho-sigma)g))`

`sqrt(T/((rho-2sigma)g))`

`sqrt(2T/((2rho-3sigma)g))`

`sqrt(3T/((2rho-sigma)g))`

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