Give practical applications of Archimedes' principle.
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Solution
Archimedes' principle is used in designing ships and submarines. They are to be made of specific dimensions so that in spite of the large value of density of steel, the ship would float in water.
Lactometers also work on Archimedes' principle as adulteration causes a change of density which can easily be identified using this device.
Archimedes' principle provides the principle of working of a hydrometer, which is used to determine the density of fluids using water.