In medical scanning, which rays are used?
Correct answer: B. X-rays
- A. Photon
- B. X-rays
- C. Beta
- D. White
Explanation
OPTION B:X-rays are used in medical scanning. Bone is more opaque to X-rays than flesh, therefore if X-rays are allowed to pass through the human body a shadow of bone can be obtained on photographic film. The X-ray reveals the fractures of bones and the presence of foreign bodies. High-energy X-rays can be used for therapeutic purposes as well.Hence, B is the correct option.OPTIONS A, C, and D are not used in medical scanning
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About Biological and Medical Uses of Radiation
Radiation in medicine includes X-rays and gamma rays for imaging, radioactive tracers for diagnosis, and controlled radiation for destroying cancerous tissue. The topic also covers CT scans, PET imaging, radiotherapy, sterilisation, half-life and dosage, alongside biological damage, shielding and the need to balance diagnostic or therapeutic benefit against exposure.
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