\( v_{1} \) and \( v_{2} \) are the velocities of sound at the same...

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\( v_{1} \) and \( v_{2} \) are the velocities of sound at the same temperature in two monoatomic gases of densities
\( \mathrm{P} \)
W. \( \rho_{1} \) and \( \rho_{2} \) respectively. If \( \rho_{1} / \rho_{2}=\frac{1}{4} \) then the ratio of velocities \( v_{1} \) and \( v_{2} \) will be
(1) \( 1: 2 \)
(2) \( 4: 1 \)
(3) \( 2: 1 \)
(4) \( 1: 4 \)
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