10. Ultrasound has a frequency of vibration *
1 point
(a) between 20 and 20,000 Hz
(b) below 20 Hz
(c) above 20,000 Hz
(d) between 500 and 10,000 Hz
Answers
Answered by
2
Answer:
between 20 and 20,000 Hz
Explanation:
Ultrasound is distinguished by vibrations with a frequency greater than 20,000 Hz, compared to audible sounds that humans typically hear with frequencies between 20 and 20,000 Hz. Ultrasound energy requires matter or a medium with particles to vibrate to conduct or propagate its energy.
Answered by
10
Answer:
(c) above 20,000 Hz
100% right answer
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