MCQ
A vibrating body:
- AWill always produce sound
- BMay or may not produce sound if the amplitude of vibration is low
- ✓Will produce sound which depends upon frequency
- DNone of the above
A vibrating body vibrates the surrounding air, and when these vibrations reach our ears we hear sound. But, some vibrations cannot be perceived as sound to humans as human ears can only detect sound in the frequency range of $20Hz$ to $20,000Hz,$ so depending upon the vibration frequency, can only we define a vibration as sound.
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