Relative Density = Density of substance / Density of reference substance. Reference substance for solids/liquids is usually water (density ≈ 1000 kg/ m³). Relative density is a dimensionless ratio.
If density of water is 1000 kgm⁻³ and density of copper is 8.9 × 10³ kgm⁻³. What is relative density of copper ?
Asked in MPSC CS Prelims 2021 · Topic: Physical Properties of Materials (Density and Specific Gravity)
More Physics questions
- Density of water is
- Matter around us can exist in three different states, namely, solid, liquid and gas. The correct order of their compressibility is
- Which one of the following regarding density of water at atmospheric pressure is correct ?
- A spherical shell of outer radius R and inner radius R/2 contains a solid sphere of radius R/2 (see figure). The density of the material of the solid sphere is ρ and that of the shell is ρ/2. What is the average mass density of the larger sphere thus formed?
- Which one among the following statements with reference to the properties of water is not correct ?
- Two substances of densities $\rho_1$ and $ \rho_2$ are mixed in equal volume and their relative density is 4. When they are mixed in equal masses, relative density is 3. The values of $ \rho_1$ and $\rho_2$ respectively are
- An object is made of two equal parts by volume; one part has density $\rho_0$ and the other part has density $2\rho_0$. What is the average density of the object?
- A pumpkin weighs 7.5 N. On submerging it completely in water, ¾ L of water gets displaced. The acceleration due to gravity at the place where the pumpkin was weighed is 10 m/s². Which one of the following is the correct value of the density of the pumpkin ?