Question

When witnessing the Doppler effect, a source approaching the observer seems to have a shorter wavelength or a blank pitch, while an object passing the observer seems to have a blank pitch.

Fill in the blanks

Answer 1

[AI-generated answer — Bot]

- When witnessing the Doppler effect, a source approaching the observer seems to have a shorter wavelength or a higher pitch, while an object passing the observer seems to have a lower pitch.