Question

If the relative density of an object is 1.5, what is its density?

• A. 1.5 g/cm³
• B. 0.5 g/cm³
• C. 1.25 kg/m³
• D. 1.5 kg/m³

Answer 1

The correct option is A

1.5 g/cm³

Let $\rho$ be the density of the object.
Density of water = $1gc{m}^{-3}$(at $4^{\circ }C$)
Relative density = $\frac{\rho }{Densityofwater}$ or,
ρ = Relative density $\times$ Density of water i.e.,
ρ = 1.5 $\times$ 1 $gc{m}^{-3}$
$\because$ Density of water = 1 $gc{m}^{-3}$
So, density of the object = 1.5 $gc{m}^{-3}$