A pipe of length 20 cm is open at both ends. Which harmonic mode of the pipe is…
Physics · JEE Advanced · NTA Exams — Oscillations and Waves
A pipe of length 20 cm is open at both ends. Which harmonic mode of the pipe is resonantly excited by a 1700 Hz source? The speed of sound = 340 ms–1 .
- First harmonic
- Second harmonic
- Third harmonic
- Fourth harmonic
Answer
(B) Second harmonic
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