science
Grade-4-
Easy
Question
The frequency of a sound wave represents its ________.
- Loudness
- Pitch
- Speed
- None of these
Hint:
It depends on frequency.
The correct answer is: Pitch
- Amplitude of a sound wave represents its loudness.
- And frequency of a sound wave represents its pitch.
- So, the correct option is b.
- Sounds are higher or lower in pitch according to the frequency of vibration of the sound waves producing them.
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