Question

Objects having a density less than that of the liquid in which they are immersed, ______ on the surface of the liquid.

Answer 1

1. Buoyant force is given as, =$\rho gv.$
2. where $\rho$denotes the density of the fluid,$g$ denotes acceleration due to gravity, $v$ denotes the volume of liquid displaced.
3. The buoyant force depends on the density only, if the volume of liquid displaced remains the same.
4. If the density of the fluid is more than that of the body then buoyant force may reach a value greater than the weight of the body and body will start floating on fluid.

Hence, objects having a density less than that of the liquid in which they are immersed float on the surface of the liquid.