Physics · 2025
JEE Main · 3 April 2025, Shift 2 · Q35
In the resonance experiment, two air columns (closed at one end) of 100 cm and 120 cm long, give 15 beats per second when each one is sounding in the…
In the resonance experiment, two air columns (closed at one end) of $\displaystyle 100$ cm and $\displaystyle 120$ cm long, give $\displaystyle 15$ beats per second when each one is sounding in the respective fundamental modes. The velocity of sound in the air column is:
Official answer
From NTA’s final answer key for this paper.
(1)
$\displaystyle 360 \mathrm{~m} / \mathrm{s}$
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JEE Main 2025 Physics question, with the answer from NTA’s final answer key. Where our answers come from.