# Kundt's Tube

1. Nov 29, 2012

### Fabio010

1. The problem statement, all variables and given/known data

Kundt's Tube.

First of all, i used a aluminum rod.

Then i rubbed it to cause vibration .

2. Relevant equations
a)How can i change the frequency of the sound produced in tube.

b)What is the difference of rubbing the metal with more pressure?

3. The attempt at a solution

a)
Changing the material of the rod. (I think that is the only way to change the frequency produced by sound in the interior of the tube, because :

vsound/λsound = v(material of the rod)/λmaterial of the rod = frequency

$\frac{vgas}{λgas}$ = $\frac{v(material of the rod)}{λmaterial of the rod}$ = frequency

b)

The intensity(amplitude) of the sound. When i applied more pressure rubbing the rod, a louder sound was produced.

Is it correct??

Help is always appreciated.

Last edited: Nov 29, 2012
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