Physics · 2020
JEE Main · 9 January 2020, Shift 1 · Q8
Consider two ideal diatomic gases A and B at some temperature T. Molecules of the gas A are rigid, and have a mass m. Molecules of the gas B have an…
Consider two ideal diatomic gases A and B at some temperature T. Molecules of the gas A are rigid, and have a mass m. Molecules of the gas B have an additional vibrational mode, and have a mass $\displaystyle \frac{\mathrm{m}}{4}$. The ratio of the specific heats $\displaystyle \left(\mathrm{C}_{\mathrm{V}}^{\mathrm{A}}\right.$ and $\displaystyle \left.\mathrm{C}_{\mathrm{V}}^{\mathrm{B}}\right)$ of gas A and B, respectively is :
Official answer
(2)
$\displaystyle 5$ : $\displaystyle 7$
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JEE Main 2020 Physics question, with the answer from NTA’s final answer key. Where our answers come from.