Question

# What is heavier on the surface of the earth: 1 m3 of cotton or 1 m3 of iron? (Given: ρiron>ρcotton, where ρ denotes density)CottonIronBoth will have equal weightsBoth will have equal masses

Solution

## The correct option is B IronFrom definition of density, Density=MassVolume ⟹Mass=Density×Volume It is given that volume of iron and cotton is the same (1 m3). Also, density of iron is much more than cotton. Hence, mass of iron will be more than the density of cotton.

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