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COMEDK2016PhysicsWaves and Sound

An open pipe emits a fundamental frequency n when it emits the 3rd harmonic, then the pipe can accommodate

Options

  1. A2 nodes, 2 anti-nodes
  2. B3 nodes, 4 anti-nodes
  3. C3 nodes, 3 anti-nodes
  4. D1 node, 2 anti-nodes

Correct answer

B. 3 nodes, 4 anti-nodes

Step-by-step solution

For third harmonic, n=3 . So, for an open pipe, the propagation of waves can be shown as Nodes =3 and anti-nodes =4

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