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

A wooden block with a coin placed on its top, floats in water as shown in the figure.

The distances $\mathrm{l}$ and $\mathrm{h}$ are shown in the figure. After some time, the coin falls
into the water. Then,

Choose the correct alterative/s:

Two non-mixing liquids of densities $\rho$ and $n\rho$ $(n>1)$ are put in a container. The height of each liquid is $h.$ A solid cylinder of length $L$ and density $d$ is put in this container. The cylinder floats with its axis vertical and length $rL~(r<1))$ in the denser liquid. The density $d$ is equal to:
1. $[2+(n+1)r ]\rho$
2. $[2+(n-1)r] \rho$
3. $[1+(n-1)r] \rho$
4. $[1+(n+1)r ]\rho$

Streamline flow is more likely for liquids with,

Choose the correct option:

Which of the following diagrams does not represent a streamline flow?

1.		2.
3.		4.