Question

what do you understand by the buoyancy. explain. Why Cork floats while the iron - nail sinks when placed on the surface of the water?

Answer 1

A cork floats in water while the iron nail sinks. Give reason. A cork floats in water while the iron nail sinks because the density of cork is less than that of water. Thus, the upthrust of water on the cork is greater than the weight of the cork.

Answer 2

Buoyancy means the ability of substance to float over the water
this is due to lower weight that gives cork more surface area over water which helps it to float.
but on the case of iron nail due to lower surface area, it sinks in water. thanks.......... hope this helps you