Equal mass of three liquids are kept in three identical cylindrical vessels $A$, $B$ and $C$. The densities are $\rho_A,~\rho_B,~\rho_C$ with $\rho_A<\rho_B<\rho_C$ . The force on the base will be:

Toricelli’s barometer used mercury. Pascal duplicated it using French wine of density $984~\text{kg/m}^3.$ The height of the wine column for normal atmospheric pressure is:
1. $11.5~\text{m}$
2. $10.5~\text{m}$
3. $9.00~\text{m}$
4. $15.0~\text{m}$

A hydraulic automobile lift is designed to lift cars with a maximum mass of $3000$ kg. The area of the cross-section of the piston carrying the load is $425$ cm². What maximum pressure would the smaller piston have to bear?
1. $3.12\times10^{5}$ Pa
2. $1.01\times10^{5}$ Pa
3. $2.94\times10^{5}$ Pa
4. $6.92\times10^{5}$ Pa