The velocity of sound in a gas is 300 m $s^{- 1}$ . The root means square velocity of the molecules is of the order of

4 m

s^{- 1}

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40 m

s^{- 1}

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400 m

s^{- 1}

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4000 m

s^{- 1}

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Solution

The correct option is B 400 m $s^{- 1}$
$v_{m i x} = v_{s o u n d} \sqrt{\frac{3}{γ}} = 400 m / s$

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The velocity of sound in a gas is 300 ms−1. The root means square velocity of the molecules is of the order of

The correct option is B 400 ms−1vmix=vsound√3γ=400m/s

The velocity of sound in a gas is 300 m $s^{- 1}$ . The root means square velocity of the molecules is of the order of

The correct option is B 400 m $s^{- 1}$
$v_{m i x} = v_{s o u n d} \sqrt{\frac{3}{γ}} = 400 m / s$