Boyle's Law states that for a fixed amount of gas at constant temperature, the pressure and volume are inversely proportional (P₁V₁ = P₂V₂). The pressure at the bottom of the lake is greater due to the weight of the water column above it plus atmospheric pressure, compared to the pressure at the surface which is primarily atmospheric pressure.
When an air bubble at the bottom of a lake rises to the top, it will
Asked in UPPCS Prelims 1996 · Topic: Mechanics (Fluid Statics and Dynamics (Continuity Equation, Bernoulli's Theorem))
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