A solid sphere of volume V and density rho floats at the interface of two immiscible liquids of densities rho1 and rho2 respectively. If rho1a rho−rho1/rho2−rho
b rho2−rho/rho−rho1
c rho+rho1/rho+rho2
d rho+rho2/rho+rho1