Relative Density: Relative density is a measure of how an object compares to the density of the fluid in which it is immersed. It is defined as the ratio of...
Relative Density:
Relative density is a measure of how an object compares to the density of the fluid in which it is immersed. It is defined as the ratio of the object's density to the density of the fluid.
For an object to float in a fluid, it must have a relative density less than that of the fluid. This means that the buoyant force acting on the object must be greater than the weight of the object.
Examples:
A marble will float in water due to its relative density being lower than that of water.
A feather will float in air due to its relative density being lower than that of air.
A solid block will sink in water due to its relative density being higher than that of water