Question

what is the SI unit of relative density

Answer 1

Hey mate here is your answer》》

So, it is a dimensionless quantity and has no unit. Relative density is the ratio of the density (mass of a unit volume) of a substance to the density of a given reference material. Specific gravity usually means relative density with respect to water.

Hope this answer will help you..《《

Answer 2

it is approximately 1 g/cm3.
hope it helps u