Answer :

The density of water is,

[tex]d_w=1000kgm^{-3}[/tex]

The density of mercury is,

[tex]d_m=13600kgm^{-3}[/tex]

The relative density of mercury is the density of mercury concerning the density of water.

Thus, the relative density of mercury is,

[tex]\begin{gathered} \frac{d_m}{d_w}=\frac{13600}{1000}_{} \\ \frac{d_m}{d_w}=13.6 \end{gathered}[/tex]

Hence, option A is the correct answer.

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