Question

An iron piece sinks in water but floats in mercury. Give reason.

Answer 1

Solution:-

1. If the density of an object is greater than the fluid in which the object is immersed then the object sinks.
2. If the density of an object is less than the fluid in which the object is immersed then the object floats.
3. Iron piece sinks in water because the density of the iron is greater than the water and less than the mercury.
4. Therefore, iron piece sinks in water and floats in mercury.