Understanding Resonance in Sound Pipes: The Importance of Nodes vs. Antinodes

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Homework Help Overview

The discussion revolves around understanding resonance in sound pipes, specifically the behavior of nodes and antinodes in closed pipes. Participants are exploring the implications of having a node at the closed end versus an antinode.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants are questioning the necessity of a node at the closed end of a sound pipe and the implications of having an antinode instead. There is an exploration of wave behavior, particularly in relation to longitudinal waves and the oscillation of air particles.

Discussion Status

The conversation is ongoing, with participants seeking clarification on the behavior of waves in pipes. Some guidance has been offered regarding the nature of nodes and antinodes, but there is no explicit consensus on the implications of these concepts in the context of closed pipes.

Contextual Notes

Participants are navigating between different types of waves and their characteristics, which may lead to confusion. There is a mention of a specific setup involving a plunger and an open side, indicating a practical scenario being considered.

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Ok, I don't understand why in a sound resonating pipe, that the in the closed end there needs to be a node and not antinode. Why?
 
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IIRC, you want to look at the reflected wave.
 
huh? Can you elaborate?
 
Sorry, my mistake, I was thinking of a transverse wave, not a longitudinal wave.


Recall that nodes are where the particles do not oscilate about their rest position... does that help?
 
Right. I get that. But what would it make a difference if i had a anti-node instead on a closed pipe?
 
Well, it's kind of difficult for air particles to oscillate through the pipe...
 
wait. Ok imagine the pipe, it has a plunger and an open side on the opposite end. Why would air particles have trouble? It is coming from the open side or the anti-node side.
 
When I said through, I meant through the closed end.
 

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