Given that the fundamental frequency of the string is f = 200 Hz
We have to find the second overtone frequency.
The second overtone frequency can be calculated by the formula
[tex]f_2=3f[/tex]Substituting the value, the frequency of the second overtone is
[tex]\begin{gathered} f_2=3\times200 \\ =600\text{ Hz} \end{gathered}[/tex]Thus, the second overtone frequency is 600 Hz.