JEE Main 2026 — Mechanical Properties of Fluids Question with Solution
JEE Main 2026 (23 January Shift 2)
Question
An air bubble of volume rises from the bottom of a swimming pool of 5 m deep. At the bottom of the pool water temperature is . The volume of the bubble when it reaches the surface, where the water temperature is , is .
, density of water , and 1 atm pressure is
, density of water , and 1 atm pressure is
Choose an option
Show full solutionCorrect option: A
Correct answer
A4.5
Step-by-step explanation
An air bubble rises through water with initial volume 2.9 cm³ at the bottom. Calculating pressures at both locations:
At bottom (5 m depth): Pa
At surface: Pa
Initial temperature: K, Final temperature: K
Using ideal gas law:
cm³
At bottom (5 m depth): Pa
At surface: Pa
Initial temperature: K, Final temperature: K
Using ideal gas law:
cm³
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This is a previous-year question from JEE Main 2026, covering the Mechanical Properties of Fluids chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.