A) 4v
B) \[v/2\sqrt{2}\]
C) 2v
D) None of these
Correct Answer: B
Solution :
\[\frac{{{c}_{1}}}{{{c}_{2}}}={{\left[ \frac{{{\rho }_{2}}}{{{\rho }_{1}}} \right]}^{1/2}}\] Density of He\[=8\times \]density of \[{{O}_{2}}\] Velocity of sound in\[He=v/\sqrt{8}=\frac{v}{2\sqrt{2}}\]
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