What is heavier on the surface of the earth: 1m3 of cotton or 1m3 of iron?
(Given: ρiron>ρcotton, where ρ denotes density)
A
Cotton
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B
Iron
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C
Both will have equal weights
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D
Both will have equal masses
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Solution
The correct option is B Iron From definition of density, Density=MassVolume ⟹Mass=Density×Volume
It is given that volume of iron and cotton is the same (1m3). Also, density of iron is much more than cotton. Hence, mass of iron will be more than the mass of cotton.