Question

The density of iron is 7.8 into 10 raise to power 3 kg per metre cube and that of water is 10 raise to power 3 kg per metre cube find the relative density of water

Answer 1

Answer is 7.8

Explanation:

Relative density = density of substance/density of water

Here substance is iron heving density 7.8*10³

Therefore 7.8*10³/10³

=7.8