Ultrasound is preferred over X-rays for examining soft tissues inside the human body…
PHYSICS · Single correct · A Level · Physics · Medical physics · Medical physics
Problem
Ultrasound is preferred over X-rays for examining soft tissues inside the human body mainly because it
(a) has a longer wavelength than X-rays, producing sharper images
(b) is non-ionising and gets reflected from boundaries between different tissues
(c) possesses a higher energy that destroys harmful microbes
(d) travels faster in air, so images form more quickly