A beaker containing a liquid of density ρ  moves up with an acceleration a. The pressure due to the liquid at a depth h below the free surface of the liquid is

When a beaker containing a liquid of density ρ  moves up with an acceleration a, it will work as a lift moving upward with acceleration a. The effective acceleration due to gravity in lift = (a + g) ∴  Pressure of liquid of height h=hρ(a+g)