Easyphysics
GCSE - OCR 21 Century
P3 Radioactive Materials
Index
Glossary

Did you know? 

Sterilization of medical instruments and food is a common application of radiation.

 

     

 P3 Uses of ionising radiation

Syllabus Summary Questions Answers


 1. The type of ionising radiation that kills bacteria on food and surgical instruments is gamma.

 2. In radiotherapy, the ionising radiation must be focused on the cancer cells only to...

  • kill them
    .

  • causes less damage to nearby healthy cells

 3. When killing cancer cells with ionising radiation, nearby healthy cells are also damaged. True.