The ratio of speeds of sound in hydrogen gas and oxygen gas at same temperature will be

8 : 1

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4 : 1

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1 : 8

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1 : 4

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Solution

The correct option is A $4 : 1$
$v \propto \frac{1}{\sqrt{M_{g a s}}}$
Here, v is the velocity of sound in the medium, $M_{g a s}$ is the molecular weight of the gas.Therefore,
$\frac{v_{H_{2}}}{v_{O_{2}}} = \sqrt{\frac{M_{O_{2}}}{M_{H_{2}}}} = \sqrt{\frac{32}{2}} = \sqrt{16} = 4$
Option "B" is correct.

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The ratio of speeds of sound in hydrogen gas and oxygen gas at same temperature will be

The correct option is A 4:1v∝1√MgasHere, v is the velocity of sound in the medium, Mgas is the molecular weight of the gas.Therefore, vH2vO2=√MO2MH2=√322=√16=4Option "B" is correct.