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Question 30919
JEE Physics · Hard

Fluid Mechanics: Pressure MCQ

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PressureHardQuestion 30919

Question

A piston of area A at depth h in water exerts pressure P₀ + ρgh on the liquid. If additional force F is applied on piston, pressure at depth h becomes:
  1. A
    P₀ + ρgh + F/A
    Correct
  2. B
    P₀ + ρgh
  3. C
    F/A + ρgh
  4. D
    P₀ + F/A

Correct answer

P₀ + ρgh + F/A

Explanation

Pressure at depth = atmospheric + piston force + hydrostatic = P₀ + F/A + ρgh.

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