Question

In the diagram shown the liquid has density $\rho$. Atmospheric pressure is $P_o$. The pressure at point A is:

Answer 1

P_o + \rho g h

Answer 2

The pressure at point A is the sum of the atmospheric pressure $P_o$ acting on the free surface and the hydrostatic pressure $\rho g h$ due to the depth $h$ of point A from the free surface. Thus, $P_A = P_o + \rho g h$.