Answer :
Final answer:
Frequency is the key feature of a sound wave related to pitch.
Explanation:
Frequency is the feature of a sound wave related to pitch. In sound waves, higher frequencies correspond to higher pitches, while lower frequencies correspond to lower pitches.
For example, a high-frequency sound wave, such as a whistle, has a higher pitch, while a low-frequency sound wave, like a drum's thud, has a lower pitch.
Understanding the relationship between frequency and pitch is essential in the study of sound waves and how they are perceived by humans.
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