_________ ಆಧಾರದ ಮೇಲೆ ವಸ್ತುಗಳು ನೀರಿನ ಮೇಲೆ ತೇಲುತ್ತವೆ.

By Archimedes' principle, a body in a fluid feels an upward buoyant force equal to the weight of fluid it displaces. An object floats when that force can balance its weight.