The speed of sound in a gas is V and the root mean square speed of gas molecules is vrms. If the ratio of the specific heats of gas γ=1.5 then ratio v/vrms is
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a
1:3
b
1:4
c
1:2
d
1:2
answer is C.
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Detailed Solution
Root Mean Square Velocity : Vrms=3Pρ Speed of sound in a gas : V=γPρ ∴VVrms=γ3=1.53=12