Answer:
f = 228.7 Hz
Step-by-step explanation:
Given that,
The wavelength of sound in air,
![\lambda=150\ cm=1.5\ m](https://img.qammunity.org/2022/formulas/physics/high-school/6gvi6fyvimj11sirqgcuqyc6by4f120nfq.png)
We need to find the frequency of sound. The speed of any object is given by :
![v=f\lambda](https://img.qammunity.org/2022/formulas/physics/high-school/s0f3r05cj52ps0ex7v2ia65bwa3zegeyr3.png)
We know that the speed of sound in air is 343 m/s.
So,
![f=(v)/(\lambda)\\\\f=(343)/(1.5)\\\\f=228.7\ Hz](https://img.qammunity.org/2022/formulas/physics/high-school/jrqbamu5axsb0j80m5yet28llkwjeooq5w.png)
So, the frequency of sound is 228.7 Hz.