A Doppler ultrasound device produces ultrasound of frequency 5 MHz and the echo from red blood cells has a frequency of 5,002,500 Hz. The beat frequency produced will be:
belongs to book: Examination Questions and Answers in Basic Anatomy and Physiology|Martin Caon|| Chapter number:16.4| Question number:12
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Medicine
C: Beat frequency is the difference between the two frequencies. 5,000,000 − 5,002,500 = 2500 Hz. The frequency of the beats is within the audible range so we can hear them.
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