Physics for IGCSE & O level - Waves And Sounds (Section 5 - No. 25)
In the context of medical applications, why is ultrasound often preferred over X-rays?
Ultrasound waves are faster
Ultrasound is safer because X-rays can cause cell damage
X-rays produce better image quality
Ultrasound is more effective at detecting bone fractures
Giải thích
Ultrasound is safer because X-rays can cause cell damage inside a growing baby