I upload the answer via Image because Brainly warned me that there were inappropriate links or words.
Answer:
B
explanation:
The car is not making a change in speed.
1. They could have different types of sounds, so wave-shape could be different.
2. If they have the same frequency, the volume is different, so they could have different amplitudes (larger amplitude = larger sound).
3. Different frequencies based on the pitches
Solution :
1. Rayleigh scattering takes place when the particle size is smaller than the wavelength (λ).
2. Mie scattering takes place when particle size is nearly equal to the wavelength (λ).
3. Non-selective scatter takes place when particle size in greater than the wavelength (λ).
We have the sizes of different particles :
Smoke particles
Cloud droplets
Rain droplets
Wavelength Smoke particles Cloud droplets Rain droplets
Rayleigh Non-selective Non-selective Non-selective
Rayleigh Rayleigh Non-selective Non-selective
Rayleigh Non-selective Non-selective Non-selective
Rayleigh Rayleigh Rayleigh Mie