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The equation I will be using to determine the speed of sound is:

[tex]v=f\lambda[/tex]

[tex]v[/tex] is the speed of sound

[tex]f[/tex] is the frequency and this will be known

[tex]\lambda[/tex] is the wavelength, this is what I must find

I will have a large cylinder fulled with water and inside it there will be a moveable tube. Correct me if I am wrong, but am I measuring from the top of the tube to the water? How do I use this to determine the wavelength? There must be an equation that relates the distance from the top of the pipe and the surface of the water. As this experiment involves a close pipe so I think I have the equation for the length of the pipe.

[tex]Length=\frac{1}{4}\lambda[/tex]

My question is, is this length the length of the moveable pipe? If so I can measure that and then calculate the wavelength, though this length may be the point at which I get a resonance.

Any help would be great, thanks!

Bit Confused :yuck:

_Mayday_