Physics · 2026
JEE Main · 22 January 2026, Shift 2 · Q49
An insulated cylinder of volume 60 cm^3 is filled with a gas at 27 °C and 2 atmospheric pressure. Then the gas is compressed making the final volume…
An insulated cylinder of volume $\displaystyle 60 \mathrm{~cm}^3$ is filled with a gas at $\displaystyle 27$ °C and $\displaystyle 2$ atmospheric pressure. Then the gas is compressed making the final volume as $\displaystyle 20 \mathrm{~cm}^3$ while allowing the temperature to rise to $\displaystyle 77$ °C. The final pressure is $\displaystyle \_\_\_\_$ atmospheric pressure.
Official answer
From NTA’s final answer key for this paper.
7
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JEE Main 2026 Physics question, with the answer from NTA’s final answer key. Where our answers come from.