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Musical Instruments
- Musical instruments produce sound through the vibration of strings, air columns, or membranes.
- The pitch of a sound is determined by the frequency of vibrations in the instrument.
- String instruments like the violin and guitar create sound through vibrating strings.
- The length, tension, and thickness of the string influence the pitch of the sound.
- Wind instruments, such as flutes and trumpets,
Ultrasonics
- Ultrasonics refers to sound waves with frequencies above the human hearing range, typically greater than 20,000 Hz.
- Ultrasonic waves have short wavelengths, allowing them to be highly directional.
- These waves are used in medical imaging, including ultrasound scans for monitoring pregnancy and diagnosing medical conditions.
- In industrial applications, ultrasonics is employed for cleaning delicate objects and in welding plastics.
- Ultras