AP EAMCET · PHYSICS · Waves and Sound
An open air pipe of length \(80 \mathrm{~cm}\) has the second harmonic frequency equal to the fundamental frequency of a closed organ air pipe. The length of the closed pipe is
- A \(20 \mathrm{~cm}\)
- B \(40 \mathrm{~cm}\)
- C \(60 \mathrm{~cm}\)
- D \(10 \mathrm{~cm}\)
Answer & Solution
Correct Answer
(A) \(20 \mathrm{~cm}\)
Step-by-step Solution
Detailed explanation
We have \(\left(\mathrm{f}_2\right)_{\text {Open }}=\left(\mathrm{f}_2\right)_{\text {Closed }}\)…
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