Answer:
Given \[{{h}_{1}}=70\text{ }cm=0.7\text{ }m\] \[{{d}_{1}}=13600\text{ }kg/{{m}^{3}}\] \[{{h}_{2}}=?\] \[{{d}_{2}}=1000\text{ }kg/{{m}^{3}}\] Since the pressure is the same therefore we have \[{{h}_{1}}{{d}_{1}}g={{h}_{2}}{{d}_{2}}g\] \[\Rightarrow \] \[{{h}_{2}}=\frac{{{h}_{1}}{{d}_{1}}}{{{d}_{2}}}=\frac{0.7\times 13600}{1000}\]
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