Question

Derive an expression for pressure at a point inside a liquid.​

Answer 1

Answer:

AF=hPg⇒ Pressure P=hρg.

Answer 2

P=hρg is an expression for pressure at a point internal to a liquid.​

Archimedes' principle :

• Archimedes' precept states that a frame immersed in a fluid is subjected to an upwards pressure identical to the load of the displaced fluid.
• This is a primary circumstance of equilibrium. We bear in mind that the above pressure, known as the pressure of buoyancy, is placed withinside the Centre of the submerged hull that we name the Centre of buoyancy.

Explanation:

• Consider an imaginary cylinder in the liquid, made of an identical liquid. Since the cylinder is in equilibrium.
• According to Archimedes' precept.
• T r² (h₂ - h₁) Fbouyent =mg= PV.g = P.A.h.g.

F/A =hPg =Pressure P = hρg.

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