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tourjete
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Homework Statement
A uniform string of length 2.5 m and mass 0.01 kg is placed under a tension of 10 N.
1. What is the frequency of the fundamental mode?
2. If the string is plucked and is then touched at a point 0.5 m from one end, creating a node, what frequencies persist?
Homework Equations
[tex]\omega[/tex] = [tex]\sqrt{T/\mu}[/tex]* n[tex]\pi[/tex]/L where [tex]\mu[/tex] = M/L
The Attempt at a Solution
I got the first part, I just plugged all the given information into the equation and used n=1 since it asked for the fundamental mode. I got 62.8319 radians/second.
I'm a bit lost as to what the concept of a node is. Do I just use the same equation again, but use L = 2.5 - .5 = 2 m? Or do I use n=5 since the string is now divided into fifths?