Answer:
The value is [tex]f = 120 \ Hz[/tex]
Explanation:
From the question we are told that
The frequency of the first harmonics is [tex]f_1 = 360 \ Hz[/tex]
The frequency of harmonics succeeding the other harmonic [tex]f_2 = 480 \ Hz[/tex]
Generally the fundamental frequency is mathematically represented as
[tex]f = f_2 - f_1[/tex]
=> [tex]f = 480 - 360[/tex]
=> [tex]f = 120 \ Hz[/tex]
