ASNT Industrial Radiography Radiation Safety Practice Test

Are gamma rays affected by magnetic fields?

1. True

2. False

3. Only under specific conditions

4. Only in a vacuum

The correct answer is: False

Gamma rays are a form of electromagnetic radiation that, like visible light or radio waves, carry no electric charge. Because of this characteristic, gamma rays are not influenced by magnetic fields. In contrast, charged particles such as electrons and protons will respond to magnetic fields due to their charge, causing them to change direction or speed when subjected to such fields. This lack of interaction with magnetic fields is fundamental to understanding the behavior of different forms of radiation in various environments. Gamma rays primarily interact with matter through processes such as photoelectric absorption, Compton scattering, and pair production, rather than being affected by electromagnetic fields. Therefore, the assertion that gamma rays are not affected by magnetic fields is accurate and reflects the principles of electromagnetic theory and radiation safety.