Two lowest frequencies to which tube will resonates are 272 Hz and 544 Hz.
A uniform tube of length 60.5 cm is held vertically with its lower end dipped in water. A sound source of frequency 500 Hz sends sound waves into the tube. When the length of tube above water is 16 cm and again when it is 50 cm, the tube resonates with the source of sound. Two lowest frequencies (in Hz ), to which tube will resonate when it is taken out of water, are (approximately).
Held on 19 May 2012 · Verified 6 Jul 2026.
281,562
281,843
276,552
272,544
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Work through every JEE Main Waves & Oscillations PYQ, year by year.