A person moves away from a stationary sound source. Which phrase describes the sound perceived by the person?(1 point)

Question

Responses

lower pitch and longer wavelength
lower pitch and longer wavelength

higher pitch and longer wavelength
higher pitch and longer wavelength

higher pitch and shorter wavelength
higher pitch and shorter wavelength

lower pitch and shorter wavelength
lower pitch and shorter wavelength

Answer 1

The correct phrase that describes the sound perceived by the person moving away from a stationary sound source is:

lower pitch and longer wavelength.

This phenomenon is due to the Doppler effect, which causes the frequency of the sound waves to decrease (resulting in a lower pitch) as the listener moves away from the source. Additionally, since wavelength is inversely related to frequency, a lower frequency corresponds to a longer wavelength.