Discuss using Archimedes' principle, how we can measure the specific gravity of a material?
The density of the body relative to water is known as the specific gravity of a body.
To measure the specific gravity of the body, the body is first weighed in air and then in water.
W1 and W2 be the weights of the body in air and water respectively,
ρ - density of water, and
σ - density of body.
According to Archimedes principle, loss of weight of body in liquid is given by,