One use of the Doppler effect in the medical field is the determination of the rate of
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Question:
One use of the Doppler effect in the medical field is the determination of the rate of blood flow in the human body. An ultrasonic wave detector (transmitter and receiver) is installed in certain parts of the body that have blood vessels. The waves emitted by the detector, reach the blood cells, and are reflected by the red blood cells in the blood that are moving toward the wave detector. If the frequency of the waves from the source is f, the rate of ultrasound waves in body tissues is v, and the rate of blood flow is x, determine:
a. frequency of waves received by blood cells
b. the frequency of the reflected wave that reaches the detector
c. frequency of drift in the detector
d. Answer c, if f = 500 kHz, v = 1500 m/s, and x = 10 m/s
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