Determine the frequency of the lowest three harmonics at which a string would sound out if its length is 135m/s
Frequency of wave travelling down string
where n=harmonic 1,2,3...
v is speed of string
L is length of string
For 1 st harmonic ,f=1*135/2*L=68/L
For 2nd harmonic f=2*135/2L=135/L
For 3rd harmonic f=3*135/2L=248/L
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