Question : The waves used in sonography are:
Option 1: Microwaves
Option 2: Infrared waves
Option 3: Sound waves
Option 4: Ultrasonic waves
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Correct Answer: Ultrasonic waves
Solution : The correct option is Ultrasonic waves .
Ultrasound waves or ultrasonic waves are commonly used in sonography. They have high frequency, ranging from 1 MHz to 20 MHz or greater, making it possible to comprehensively image tissues and organs in the body. This makes ultrasonography an important diagnostic tool in medicine for visualising foetuses during pregnancy, inspecting internal organs, and diagnosing anomalies or disorders.
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