A solid weighs 30 gf in air and 26 gf when completely immersed in a liquid of relative density 0.8 . Find (1) the volume of solid and
(2) the relative density of solid
Let ρ and ρl are the densities of solid and liquid.
ρl = 0.8
Weight of the solid in air = 30 g wt
V is the volume of the solid.
Weight of the solid in water = 26 g wt
Reduced weight of the solid = Weight of the solid - Weight of the liquid displaced by the stone