JEE Physics · Medium

Sound Waves: Open vs Closed Pipe MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Open vs Closed PipeMediumQuestion 31247

Question

Open pipe of length L and closed pipe of length L/2 have fundamental frequencies in ratio:
  1. A
    2:1
  2. B
    1:1
    Correct
  3. C
    1:2
  4. D
    4:1

Correct answer

1:1

Explanation

Open: v/(2L). Closed of length L/2: v/(4×L/2) = v/(2L). Same fundamental frequency — a useful comparison.