The following are the important applications of Archimedes' principle:
1. Archimedes' principle is used in determining the relative density of a substance.
2. The hydrometers used for determining the density of liquids are based on Archimedes principle.
3.The lactometers used for determining the purity of milk are based on Archimedes' principle.
4. Archimedes' principle is used in designing ships and submarines.