frequencies problem

[araw83]

The lowest tone to resonate in a close-end pipe of length L is 200Hz. Which is of the following frequencies will not resonate in the pipe?

400Hz
600Hz
1000Hz
1400Hz

Anyone know where I should start on this?

[Hurkyl]

I would start with the section in your text on pipes with closed ends.

[Pyrrhus]

This is simple, just remember for one end closed.

Fundamental Frequency:

f_{1} = \frac{v}{4l}

The rest of the frequencies will be given by

f_{n} = (2n-1)f_{1} ... n=1,2,3...