Question

explain the reason ,why the cork floats in the water whereas an iron nail sinks

Answer 1

Density of cork is less than density of water so as the density of cork is less, cork floats in water because surface area of cork is more as compared to its weight. But density of iron nail is more then density of water so it results in sinking of iron nail in water.

Answer 2

Answer:

your answer is here

an iron nail sinks in glycerine at a small cork will float on it. This is because iron is denser than glycerine, but cork is not.