Physics - Heat & Thermo Question with Solution | TestHub
PhysicsHeat & ThermoKinetic Theory of Gases and Gas LawsMedium2 minQB
PhysicsMediumsingle choice
Two balloons of the same volume are filled at the same pressure and temperature, one with hydrogen and the other with helium. Which has the greater buoyancy, and what is the ratio of the two buoyant forces?
Options:
Answer:
C
Solution:
Buoyant force equals the weight of the displaced air,
. Both balloons have the same volume, so the force is the
same. Ratio 1 : 1. (The lifting power differs only through the weight of
the gas inside.) C.
Subject:PhysicsTopic:Heat & ThermoSubtopic:Kinetic Theory of Gases and Gas Laws
⏱ 2mℹ️ Source: QB
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