The relative density of aluminium is 2.7. What is thedensity of aluminiumin SI units?(Density of water = 1.0x $10^{3} k g / m^{3}$ )

2700 k g / m^{3}

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270 k g / m^{3}

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27 k g / m^{3}

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2.7 k g / m^{3}

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Solution

The correct option is A $2700 k g / m^{3}$
Relative density of a material $A$ with respect to another material $B$ is given by $ρ_{r} = \frac{ρ A}{ρ_{B}}$
Relative density of aluminium with respect to water= $2.7 = \frac{ρ_{A l}}{ρ_{w a t e r}}$
$⟹ ρ_{A l} = 2.7 \times ρ_{w a t e r} = 2.7 \times 1000 k g / m^{3}$
$= 2700 k g / m^{3}$

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Similar questions

10.8

10^{3}

m^{3}

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

2.7 \times 10^{3} k g / m^{3}

The relative density of silver is 10.8. The density of water is 1000 kg/m³. The density of silver is:

2.7 \times 10^{3} k g / m^{3}

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