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Kundt's tube

Cyanide
in Physics

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The purpose of Kundt's tube is to experimentally determine the speed of sound through metal. I understand the concept..

 

The distance between two successive patterns (Nodes) is therefore one-half the wave length of the sound in the air.

 

 

My physics teacher asked us why we measure the distance between nodes and NOT between anti-nodes....

 

 

Frankly, I have no idea. Aren't they equivalent in length?

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That answer is TOO simple.

 

 

j/k

 

Thanks. Yea. My brain doesn't function properly after 4pm.

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