Q.
What is the absolute pressure of the gas above the liquid surface in the tank shown in fig. Density of oil $=820\, kg / m ^3$, density of mercury $=13.6 \times 10^3\, kg / m ^3$. Given $1$ atmospheric pressure $=1.01 \times 10^5\, N / m ^2$
Mechanical Properties of Fluids
Solution: