JEE PHYSICS MCQ: WAVES

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Application +4 | -1

A gas mixture has

24 \%

of Argon,

32 \%

of oxygen, and

44 \%

\mathrm{CO}_2

by mass. Find the velocity of sound in the gas mixture at

27^{\circ} \mathrm{C}

. Given

R=8.4

S.I. units. Molecular weight of

(\mathrm{Ar}=40),\left(\mathrm{O}_2=32\right),\left(\mathrm{CO}_2=44\right)

\gamma_{\mathrm{Ar}}=5 / 3, \gamma_{\mathrm{O}_2}=7 / 5, \gamma_{\mathrm{CO}_2}=4 / 3 \text {. }

View answer and explanation

Correct option: A

303.5 \mathrm{~m} / \mathrm{s}

Option A (

303.5 \mathrm{~m} / \mathrm{s}

) is correct because it is the calculated velocity of sound in the gas mixture based on the given composition and properties.

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