Answer:
The formula for the Doppler effect depends on whether the source of the wave is moving or the observer is moving relative to the wave source.
1. If the source of the wave is moving towards the observer:
- The formula is given by: f' = (v + vo) / (v - vs) * f
- Where f' is the observed frequency, f is the actual frequency emitted by the source, v is the speed of sound in the medium, vo is the speed of the observer, and vs is the speed of the source.
2. If the source of the wave is moving away from the observer:
- The formula is given by: f' = (v - vo) / (v + vs) * f
- Where f' is the observed frequency, f is the actual frequency emitted by the source, v is the speed of sound in the medium, vo is the speed of the observer, and vs is the speed of the source.
It's important to note that the Doppler effect is not only applicable to sound waves but also to other types of waves, such as light waves. In the case of light waves, the formulas are slightly different, involving the speed of light instead of the speed of sound.
I hope this helps! Let me know if you have any further questions.
Step-by-step explanation: