Question

What do you understand by the term relative density? What is its unit.

Answer 1

1. Relative density of a body is defined as the ratio of the density of the body to the density of water at $4°C$.
2. $Relativedensity=\frac{densityofbody}{densityofwaterat{4}^{0}C}$
3. Relative density of a body is a pure number that indicates how many times a body is denser than water.
4. Relative density is the ratio of two similar quantities and is therefore dimensionless and unitless.