(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

What is the wavelength of the lowest note that can resonate within an air column 42 cm in length and closed at both ends.

2. Relevant equations

Given: l = 42 cm

n = 1

Required: [tex]\lambda[/tex]

Analysis: l = [tex]\frac{n\lambda}{2}[/tex]

therefore [tex]\lambda[/tex] = [tex]\frac{2l}{n}[/tex]

I don't know how this came to be, could someone please explain.

I've just gone back to high school after 15 years and would appreciate if you could also forward me on to some good links for rules for mathematical equations such as these.

Thanks

Scott

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# Resonance and rules for mathematical equations

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