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JEE PHYSICS MCQ: THERMODYNAMICS

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The temperature of an air bubble while rising from bottom to surface of a lake remains constant but its diameter is doubled if the pressure on the surface is equal to h meter of mercury column and relative density of mercury is ρ\rho then the depth of lake is
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Correct option: D
7ρhm7 \rho \mathrm{hm}
Option D (7ρhm7 \rho \mathrm{hm}) is correct because it is derived from Boyle's law, considering the pressure difference between the bottom and surface of the lake.

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