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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoKTGMedium2 minQB

PhysicsMediumsingle choice

The ratio of the speed of sound in nitrogen gas to that in helium gas, at 300K is

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Solution:

$v = \frac{γ RT}{M} \Rightarrow \frac{v _{N_{2}}}{v _{He}} = \frac{γ _{N_{2}}}{γ _{He}} \times \frac{M _{He}}{M _{N_{2}}} = \frac{7/5}{5/3} \times \frac{4}{28} = \frac{21}{25} \times \frac{1}{7} = \frac{3}{25} = \frac{3}{5}$ .

Stream:JEESubject:PhysicsTopic:Heat & ThermoSubtopic:KTG

⏱ 2mℹ️ Source: QB

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