Question

A Child finds the mass of an iron nail to be 7 g. He then takes 10 such identical nails and gently places them into a Eureka Can filled with water. The water overflows and is collected in a measuring cylinder. The reading noted down from the measuring cylinder is 9 ml. Determine the density of the iron nail

Answer 1

Volume of body V= change in water levels

⟹ V=60−20=40 cm

3

Density of body ρ=

V

m

=

40

250

=6.25 gm/cm

3

Also ρ=6.25×1000=6250 kg/m

3