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Type: Multiple-Choice
Category: Waves and Sound
Level: Grade 8
Tags: PS4.A
Author: HTPhysics
Created: 2 years ago

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Grade 8 Waves and Sound

Why is ultrasonography considered safer than X-rays?
  1. Ultrasonic waves are more effective in imaging internal organs.
  2. Ultrasonic waves are less harmful to human tissues.
  3. Ultrasonography requires lower radiation exposure.
  4. Ultrasonography provides faster results.