# Homework Help: Partials of an Organ Pipe

1. Feb 21, 2014

### Mozzalicious

1. The problem statement, all variables and given/known data
What are the fundamental and ﬁrst overtone (second partial) of an open (at both ends)
organ pipe 16 ft long?

2. Relevant equations
V=fλ

3. The attempt at a solution
V=fλ
343=f8
42.9 hz= f

I'm just not sure how to find partials :/ All help is appreciated

2. Feb 21, 2014

### haruspex

If I'm interpreting that equation correctly, you're saying the fundamental wavelength in a 16ft doubly open pipe is 8m. That's a bit inaccurate. How do you arrive at that?
For the first overtone, how many wavelengths in the pipe?

3. Feb 23, 2014

### Mozzalicious

Well, I wouldn't say arrived so much as blundered into it lol. I don't really understand the question or partials so from everything I was able to find on partials I guessed 8. From the information the other things I could think of would be 16 or 2. I could provide the links to this information. I was kind of just throwing darts with something I didn't understand

4. Feb 23, 2014

### haruspex

Maybe I should have emphasised parts of my question: 16 feet.... 8 metres.
Do you know about nodes and antinodes? Do you get a node or antinode at the open end of a pipe? Can you draw a diagram?