Answer:
Fundamental frequency is 200 Hz.
Step-by-step explanation:
It is given that,
Frequency of the 3rd harmonic is 600 Hz.
Let f is the fundamental frequency. We need to find the value of f. The frequency of third harmonic is given by :
![3f=600\ Hz](https://img.qammunity.org/2020/formulas/physics/college/yom9nd4dw1nv18zddqvdfmftuldao5cix7.png)
So, fundamental frequency f is equal to :
f = 200 Hz
So, the fundamental frequency of the harmonics is 200 Hz. Hence, this is the required solution.