Ultrasound is used to scan unborn babies but X-rays are not used to scan unborn babies.

Ultrasound is not ionising as it is a longitudinal wave whilst X-rays are ionising as they are transverse waves and have very high frequency hence can 'knock' electrons out of their orbit. Doing this can cause mutations in the cells of the baby and potentially cause cancer.

Answered by Saram A. Physics tutor

10949 Views

See similar Physics GCSE tutors

Related Physics GCSE answers

All answers ▸

On a day with no wind, a large object is dropped from a tall building. The object experiences air resistance during its fall to the ground. State and explain, in terms of the forces acting, how the acceleration of the object varies during its fall.


What energy transfers are involved in you being able to move?


A car travelling at 14 m/s has to make an emergency stop so applies the brakes and it takes 1.5s to become stationary. What distance has the van travelled in that time?


Why is the car moving if the unbalanced force is zero?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences