Physics · 2026
JEE Main · 21 January 2026, Shift 2 · Q34
The r.m.s. speed of oxygen molecules at 47 °C is equal to that of the hydrogen molecules kept at ____ °C. (Mass of oxygen molecule/mass of hydrogen…
The r.m.s. speed of oxygen molecules at $\displaystyle 47$ °C is equal to that of the hydrogen molecules kept at
$\displaystyle \_\_\_\_$ °C. (Mass of oxygen molecule/mass of hydrogen molecule = $\displaystyle 32$/$\displaystyle 2$)
Official answer
From NTA’s final answer key for this paper.
(1)
$\displaystyle -253$
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JEE Main 2026 Physics question, with the answer from NTA’s final answer key. Where our answers come from.