Question

Drive the relation for the variation of pressure with depth

Answer 1

Variation of Pressure with Depth. One might guess that the deeper you go into a liquid or gas, the greater the pressure on you from the surrounding fluid will be. ... The force PTA due to the pressure on top of the volume of fluid. If the fluid is open to the air, PT = PO = 1.01 x 105 Pa, which is atmospheric pressure.