The volume of 50 g of a substance is $$20 cm^3$$. If the density of water is $$1 g/cm^3$$ , will the substance float or sink?

Answer :

We know that, $$Density \ = \ \frac{Mass}{Volume}$$

$$\Rightarrow Density \ = \ \frac{50}{20} \ = \ 2.5 g/cm^3$$

Density of water = $$1 g/cm^3$$

Density of the substance is greater than density of water. So the substance will float.