The r.m.s. speed of oxygen molecules at 47^° C is equal to that o… | JEE Main 2026 Physics PYQ

MCQEasyJEE Main 2026 · 21 January, Shift 2Molecular Speeds (rms, Average, Most Probable)

The r.m.s. speed of oxygen molecules at $47^\circ \text{C}$ is equal to that of the hydrogen molecules kept at _____ $^\circ \text{C}$ . (Mass of oxygen molecule/mass of hydrogen molecule = $32/2$ )

A
$-20$
B
$-253$
C
$-235$
D
$-100$

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