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Practice question

MCQ

Question

A swimmer is at a depth of 5m in a lake (ρ\=1000kg/m3). What is the gauge pressure experienced by the swimmer? (Take g\=10m/s2)

Options

Choose one · Correct answer highlighted

Explanation

Gauge pressure is Pg = ρgh. ρ = 1000kg/m3, g = 10m/s2, h = 5m. Pg = 1000×10×5 = 5×104Pa. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 5 × 10⁴ Pa. This satisfies dimensional consistency and physical conditions given, so option B is scientifically correct.

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