Explain density and relative density and write their formulae

Explanation

Density : Density is defined as mass per unit volume.
`"Density"=("Mass")/("Volume")`
Unit of density id `gm//cm^(3)orkg//m^(3).`
Relative density : Relative density of an object is the ratio of density of the object to the density of water.
`"Relative density of an object"=("Density of the object")/("Density of water")(or)`
`"Relative density of an object"=("Weight of the object")/("weight of water equal to the volume of the object")`