Question
Which device uses ultrasonic waves for getting images of
internal organs of human body?Solution
• Sound waves are longitudinal mechanical waves and frequency can be defined as the number of wave cycles happening in one sec. • Ultrasonic waves or Ultrasound waves: The sound frequency above 20,000Hz (upper audible limit of human hearing) is known as ultrasonic waves. Humans cannot detect it too. • Examples: Bat produce Ultrasonic waves.
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