Explain the meaning of the statement 'Relative density of aluminium is 2.7'.

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The statement ‘Relative density of aluminium is 2.7’.
A piece of aluminium of any volume has mass 2.7 times that of an equal volume of water i.e. Aluminium is 2.7 times heavier than water.

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Explain the meaning of the statement relative density of aluminium is 2.7 .

Q. The relative density of aluminium is 2.7. What is thedensity of aluminiumin SI units?(Density of water = 1.0x

10^{3} k g / m^{3}

)

Q. Two wires of equal length, one of aluminium and the other of copperhave the same resistance. Which of the two wires is lighter? Hence explain why aluminium wires are preferred for overhead power cables.(rAl = 2.63 × 10–8 W m, rCu = 1.72 × 10–8 W m, Relative density ofAl = 2.7, of Cu = 8.9.)

Two wires of equal length, one of aluminium and the other of copper have the same resistance. Which of the two wires is lighter? Hence explain why aluminium wires are preferred for overhead power cables. (ρ_Al = 2.63 × 10⁻⁸ Ω m, ρ_Cu = 1.72 × 10⁻⁸ Ω m, Relative density of Al = 2.7, of Cu = 8.9.)

Q. Explain the statement "relative density of brass is 8.4"

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Explain the meaning of the statement 'Relative density of aluminium is 2.7'.

The statement ‘Relative density of aluminium is 2.7’. A piece of aluminium of any volume has mass 2.7 times that of an equal volume of water i.e. Aluminium is 2.7 times heavier than water.

The statement ‘Relative density of aluminium is 2.7’.
A piece of aluminium of any volume has mass 2.7 times that of an equal volume of water i.e. Aluminium is 2.7 times heavier than water.