Question
The density of water is 1000 kg/m3. If the relative density of iron is 7.874 calculate the density of iron [Ans. 7874 kg/m3]
Answer
Density of water = 1000 kg/m3
Relative density (RD) = 7.874
Density of iron = Density of water × (RD)
= 1000 × 7.874 = 7874 kg/m3