Question

For a floating body to be in stable equilibrium, its metacentre should be [a] below the centre of gravity [b] below the centre of buoyancy [c] above the centre of buoyancy [d] between centre of gravity and centre of pressure

Answer 1

For a floating body to be in stable equilibrium, its metacenter needs to be above the center of gravity.

Others will lead to unstable system.

Answer 2

Fig 5.9 A Floating body in Stable equilibrium. Important ... Centre of gravity G is above the centre of buoyancy in the same vertical line. ... GM < 0 (M is below G) Unstable equilibrium.