The property of the sound waves that determines the pitch of the sound

The property of the sound waves that determines the pitch of the sound is its

frequency
amplitude
wavelength
intensity
This question was previously asked in
UPSC CDS-1 – 2020
The pitch of a sound is the quality that allows us to judge whether a sound is high (like a whistle) or low (like a drum). This quality is directly determined by the frequency of the sound wave. A higher frequency corresponds to a higher pitch, and a lower frequency corresponds to a lower pitch.
– Pitch is the subjective perception of the frequency of sound.
– Higher frequency means higher pitch.
– Amplitude relates to loudness or intensity.
While frequency is the primary determinant of pitch, other factors like the intensity of the sound can also slightly influence the perceived pitch, especially at very high or very low frequencies. However, for practical purposes, frequency is considered the defining characteristic for pitch.