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JEE Main Physics Class 11 Waves Part 1 Questions

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In an experiment to determine the velocity of sound in air at room temperature using a resonance tube, the first resonance is observed when the air column has a length of 20.0‌cm for a tuning fork of frequency 400‌Hz is used. The velocity of the sound at room temperature is 336ms−1. The third resonance is observed when the air column has a length of ___cm.

[29-Jun-2022-Shift-2]

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