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)

Options

A. `r=sqrt((T)/((d-rho)g))`
B. `r=sqrt((T)/((d+rho)g))`
C. `r=sqrt((2T)/(3(d+rho)g))`
D. `r=sqrt((3T)/((2d-rho)g))`a

Answer

4