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What is the frequency of a sound wave? A. It determines the medium of a sound. B. It determines the pitch of a sound. C. It determines the loudness of a sound. D. It determines the amplitude of a sound.​

User Aplassard
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The answer is B

The frequency of a sound wave determines the pitch of a sound. The pitch of a sound is how high or low the sound is perceived to be, and it is directly related to the frequency of the sound wave. Therefore, the correct option is B.
User Janicelyn
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