Answer :
Final answer:
The Doppler effect in hospitals is crucial for sonography applications, such as monitoring blood flow direction and detecting health issues through blood velocity measurements.
Explanation:
The Doppler effect in hospitals is primarily used in sonography to determine blood flow direction. Ultrasound and the Doppler effect help in monitoring fetal heartbeat, measuring blood velocity, and detecting occlusions in blood vessels. The Doppler shift of an echo is proportional to the velocity of the reflecting object, aiding in medical diagnostics.
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