Physics · 2022
JEE Main · 28 June 2022, Shift 2 · Q57
A tunning fork of frequency 340 Hz resonates in the fundamental mode with an air column of length 125 cm in a cylindrical tube closed at one end.…
A tunning fork of frequency $\displaystyle 340$ Hz resonates in the fundamental mode with an air column of length $\displaystyle 125$ cm in a cylindrical tube closed at one end. When water is slowly poured in it, the minimum height of water required for observing resonance once again is \_\_\_\_ cm.
(Velocity of sound in air is $\displaystyle 340 \mathrm{~ms}^{-1}$ )
Official answer
50
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JEE Main 2022 Physics question, with the answer from NTA’s final answer key. Where our answers come from.