An open pipe is in resonance in 2 nd harmonic with frequency f1 . Now one end of the tube…

Physics · JEE Main · NTA Exams — Oscillations and Waves

1. n = 3, f2 = \(\frac{3}{4}\) f1
2. n = 3, f2 = \(\frac{5}{4}\) f1
3. n = 5, f2 = \(\frac{5}{4}\) f1
4. n = 5, f2 = \(\frac{3}{4}\)f1

Answer

(C) n = 5, f2 = 5 4 f1

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