Question

Is the amount of water displaced is eaual to mass of the object

Answer 1

yes because dropped body take place of removed water

Answer 2

The buoyant force on a submerged object is equal to the weight of the fluid displaced. This principle is useful for determining the volume and therefore the density of an irregularly shaped object by measuring its mass in air and its effective mass when submerged in water ( density = 1 gram per cubic centimetre ).