Page 8 - Sound Wave Module
P. 8
The 1st overtone occurs when
1 wave forms along the string.
A string of length L forms 1 λ .
L=1λ then λ=L
The frequency of the top note
FIRST UPPERTONE to 1 is
The 2nd overtone occurs
when 1 and ⁄ waves form
along the string.
A string of length L forms 1 ⁄
λ or 3/2 λ
SECOND UPPERTONE L = 3/2 λ then λ = 2/3 L
Based on the above data it can be concluded that the next upper tone frequency is
These frequencies and so on are called natural frequencies or resonant frequencies
according to the following equation
