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MHT CET 2021 (21 Sep, Shift 1) · Organ Pipes & Resonance Tube

Organ Pipes & Resonance Tube question from MHT CET 2021 (21 Sep, Shift 1)

Q84MHT CET 2021 · 21 SEP · SHIFT 1Medium

Organ Pipes & Resonance Tube

In fundamental mode, the time required for the sound wave to reach upto the closed end of pipe filled with air is tt second. The frequency of vibration of air column is

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Answer: (d)

  1. Fundamental of closed pipe: f=v4Lf = \frac{v}{4L}.
  2. Time to travel the pipe length: t=Lvt = \frac{L}{v}.
  3. f=14t=0.25tf = \frac{1}{4t} = \frac{0.25}{t}
  4. So the answer is (d) 0.25t\frac{0.25}{t}.
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