Question

Relative densities of two substances a and b are 2.5 and 0.1 respectively find densities densities of a and b are also find whether they will sink or float on water

Answer 1

Relative Density of a substance = density of substance /density of water

Relative density of A = Density of A/density of water

• 2.5 = density of A /1000 kg/m³

• Density of A = 2.5 × 10³ kg/m³

Relative density of B = Density of B/density of water

• 0.9 = Density of B / 1000 kg/m³

Density of B = 0.1× 1000 kg/m³

                     = 100 kg/m³

• substance A will sink in water as it is denser than water,
• substance B will float as it is less denser than water.....