What is a closed pipe ( standing waves)

In summary, the conversation is discussing the concept of standing waves in a pipe and whether one or both sides of the pipe are open. The conclusion is that for sound to be transmitted through the pipe, at least one end must be open.
  • #1
rrosa522
48
0

Homework Statement


does it mean only one side of the pipe is open or both sides are closed.

Homework Equations

The Attempt at a Solution


i think it means only one side is open, but i just need to make sure
 
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  • #2
Perhaps you should give the phrase to us in context so we can assess.
 
  • #3
You will see nodes forming at the closed side of the pipe.
It prevents the air from vibrating at that end.
The waves are reflected with an inversion and thus
interferes destructively forming the node.
At an open end the waves are reflected without inversion
causing constructive interference and forming a large
amplitude vibration at this end of the pipe.
 
  • #5
This educational film is old, but very informative...

 
  • #6
"Modern" version of standing waves
 
  • #7
ehild said:
You have to blow the pipe, so one end must be open
We don't know if anything is being blown into the pipe. Sound could be transmitted through a diaphragm at one end.
As DaveC426913 writes, we need the whole context.
 

FAQ: What is a closed pipe ( standing waves)

What is a closed pipe?

A closed pipe is a type of musical instrument, such as a flute or organ pipe, where one end of the pipe is closed while the other end is open. This creates a resonance chamber for sound waves to bounce back and forth, producing a specific pitch or note.

How do standing waves occur in a closed pipe?

Standing waves occur in a closed pipe when a sound wave travels down the pipe and reflects off the closed end, creating an interference pattern with the original wave. This results in a stationary wave pattern, where certain points along the pipe experience constructive interference and others experience destructive interference.

What are the nodes and antinodes in a closed pipe?

Nodes are points along a standing wave where the amplitude of the wave is always zero. In a closed pipe, these nodes occur at the closed end and at the midpoint of the open end. Antinodes, on the other hand, are points where the amplitude is at its maximum. In a closed pipe, these occur at the open end of the pipe.

Can standing waves in a closed pipe produce different pitches?

Yes, the length of the pipe can affect the wavelength of the standing wave and therefore the pitch produced. By changing the length of the pipe, either by opening or closing holes or by using different lengths of pipes, different pitches can be produced.

What is the relationship between the length of a closed pipe and the wavelength of the standing wave?

The relationship between the length of a closed pipe and the wavelength of the standing wave is inverse. This means that as the length of the pipe increases, the wavelength of the standing wave decreases, and vice versa. This is why shorter pipes produce higher pitches while longer pipes produce lower pitches.

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