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Fluids — PHYSICS STD 9 — Question

ICSE BoardEnglish MediumSTD 9PHYSICSFluids3 Marks
Question
Deduce an expression for the pressure at a depth inside the liquid.
✓

Answer

For calculating the total pressure in a liquid at depth, we have to add the atmospheric pressure that acts on the free surface of the liquid.

Total pressure inside a liquid at depth 'h' = atmospheric pressure + pressure due to the liquid column.

So Total pressure inside a liquid at depth = Po + hpg. Here Po is atmospheric pressure acting on the free surface of liquid.

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