An ultrasound equipment works at frequency
(a) Higher than 20,000 Hz
(b) Higher than 10,000 Hz
(c) Lower than 20,000 Hz
(d) Lower than 10,000 Hz
Answers
Answered by
10
Answer:
a) is the correct answer
Answered by
5
Answer:
(a) Higher than 20,000 Hz
Explanation:
Ultrasound is sound waves with frequencies higher than the upper audible limit of human hearing. ultrasound devices operate with frequencies from 20000 Hz up to several gigahertz.
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