Question

A stone of mass 400g,when immersed completely in water displaces 250cm3 of water. The relative density of the stone is

Answer 1

Answer:

density =mass/ volume

or, density= 400g/250cm3

or, density = 1.6g/cm3

Answer 2

Answer:

1.60

Explanation:

According to the Archimedes' principle-

The upward buoyant force which is exerted on the object which is immersed in the fluid is equal to weight of fluid that is displaced by the object.

Thus, the volume of the stone = 250 cm³

Mass of the stone = 400 g

Thus, the expression for density is:

$Density=\frac{Mass}{Volume}$

Density = 400 g / 250 cm³ = 1.60 g/cm³

Density of water = 1 g/cm³

Relative density of stone = Density of stone / Density of water = 1.60