Question

The density of glycerine is $1260kg/m^2$. What is its relative density?$(Densityofwater=1000kg/m^2$ )

• A. $0.63kg/m^3$
• B. $1.26kg/m^3$
• C. $12.6kg/m^3$
• D. $6.3kg/m^3$

Answer 1

Answer: (B)

$1.26kg/m^3$

Answer is B.
Relative density, or specific gravity, 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.
In this case, the density of glycerine is $1260kg/m^2$ and the density of water is $1000kg/m^2$.
So, the relative velocity is 1260 / 1000 = $1.26kg/m^2$.