Q1 of 25 Page 137

A solid sphere has a radius of 2 cm and a mass of 0.05 kg. What is the relative density of the sphere?

As we all knew the density of an object is = ,which has a unit of g/cm2.

BUT the relative density is dimension less density which is define as =


So,


Mass = 0.05 kg = 50 g


radius = 2 cm


volume cm3



=33.52cm3



density of water = 1 g/cm3



So relative density of sphere is 1.49.


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