Derive v = 2 l_nf_n for the nth harmonic

  • #1
249
1

Homework Statement


Derive the expression v = lnfn where ln is the shortest distance between nodes for the nth harmonic.


Homework Equations


v = wave speed
ln = shortest distance between nodes for the nthharmonic
fn = frequency of the nth harmonic


The Attempt at a Solution



Is it asking me to take the derivative of the wave speed, which I believe would give me the acceleration of the wave?

So,

wave acceleration = 2*ln

Am I making any sense?
 

Answers and Replies

  • #2
rl.bhat
Homework Helper
4,433
8
nth harmonics of fo is n times fo. Similarly ln is equal to (lambda)o/2n.
Now proceed.
 

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