The speed of sound in oxygen \( \left(\mathrm{O}_{2}\right) \) at a...

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The speed of sound in oxygen \( \left(\mathrm{O}_{2}\right) \) at a certain temperature is
\( \mathrm{P} \) \( 460 \mathrm{~ms}^{-1} \). The speed of sound in helium \( (\mathrm{He}) \) at the same

W temperature will be (assume both gases to be ideal)
[AIEEE 2008]
(a) \( 500 \mathrm{~ms}^{-1} \)
(b) \( 650 \mathrm{~ms}^{-1} \)
(c) \( 330 \mathrm{~ms}^{-1} \)
(d) \( 1420 \mathrm{~ms}^{-1} \)
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