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JEE Main 2012Offline
Exam
JEE Main
Year
2012
Mode
Offline
Subject
Physics
Chapter
Waves and Sound

JEE Main 2012 · Offline · Physics · Waves and Sound

A cylindrical tube, open at both ends, has a fundamental frequency,...

A cylindrical tube, open at both ends, has a fundamental frequency, f\mathrm{f}, in air. The tube is dipped vertically in water so that half of it is in water. The fundamental frequency of the air-column is now

Options

  1. Aff
  2. Bf2\frac{f}{2}
  3. C3f4\frac{3 f}{4}
  4. D2f2 f

Correct answer

A. ff

Step-by-step solution

fo=v2ℓf_o=\frac{v}{2 \ell} fc=v2ℓf_c=\frac{v}{2 \ell}
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