ok, I am doing an experiment where i measure the speed of a water wave in a wave tank (see pic) and the fourmla i have to calculate the speed needs the wave length, so far i have just(adsbygoogle = window.adsbygoogle || []).push({}); assumedthat wavelength was the length of the tank, and that give good results which correspond to some results i generated using the same formula

(c = sqrt((gλ / 2 pi) * tanh (2 pi d / λ)).

But i cannot explain why the wave length is just the length of the tank Any one got any ideas?!

|'''''''''''''''|

|_.:*~*:._______|

|_______________|

eq set up ^

Deimos

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Help with determining a wavelength

## What do you think os Ascii Art

Poll closed Apr 30, 2004.

Can you offer guidance or do you also need help?

Draft saved
Draft deleted

**Physics Forums | Science Articles, Homework Help, Discussion**