A body weighs 75 g in air ,70.5 g in water and 66 g in liquid.Calculate relative density of liquid
Consider that ρa , ρw, ρl and ρ are the density of air, water, liquid and body respectively.
Apparent weight of the body = True weight - buoyant force (Vρg)
V is the volume of the body.
ρa = 1 kg/m3 , ρw = 103 kg/m3
According to the problem,
Solving equation (i) and (ii), we get
m = 75.0045 kg , V = 0.0045 kg/m3
substituting the values in equation (iii),we get
ρl = 2001.00 kg