The rms speed of hydrogen at $27^{\circ} \mathrm{C}$ is $v$. The rms speed of oxygen at $1200 \mathrm{~K}$ is

JEE PHYSICS MCQ: WAVES

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The rms speed of hydrogen at

27^{\circ} \mathrm{C}

v

. The rms speed of oxygen at

1200 \mathrm{~K}

View answer and explanation

Correct option: C

\frac{v}{2}

Option C (

\frac{v}{2}

) is correct because the rms speed is inversely proportional to the square root of the molar mass and directly proportional to the square root of the temperature.

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