\frac{ρ_{1} h_{1}}{ρ_{2}} = 2 (h - h_{0}) - h_{1} \Rightarrow h_{1} = 2 ρ_{2} \frac{h - h_{0}}{ρ_{1} + ρ_{2}} = 22 c m

${\frac{\rho_1h_1}{\rho_2} = 2(h-h_0)-h_1 \quad\Rightarrow\quad h_1 = 2\rho_2\frac{h-h_0}{\rho_1 +\rho_2 } = {22}\mathrm{cm}}$

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