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Fluid Mechanics: Pressure MCQ

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PressureMediumQuestion 30910

Question

The pressure at the bottom of a lake 10 m deep (ρ_water = 1000 kg/m³, P₀ = 10⁵ Pa, g = 10 m/s²):
  1. A
    10⁵ Pa
  2. B
    2×10⁵ Pa
    Correct
  3. C
    1.5×10⁵ Pa
  4. D
    3×10⁵ Pa

Correct answer

2×10⁵ Pa

Explanation

P = P₀ + ρgh = 10⁵ + 1000×10×10 = 10⁵ + 10⁵ = 2×10⁵ Pa.

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