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GCSE Questions: Medical Physics

- scanning and therapy

 

Q8. These photos show one medical use of ultrasound and one medical use of X-rays.

(a) Ultrasound and X-rays are commonly used in hospitals.

(i) What is the minimum frequency of ultrasound waves?

(ii) The wavelength of an X-ray is about the same as the diameter of something. What is that 'something'?

[3 marks]

(b) Compare the medical uses of ultrasound and X-rays. Your answer should include the risks, if any, and precautions, if any, associated with the use of ultrasound and X-rays.

[6 marks]

(Total 9 marks)