Learning objective
Explain common applications of various parts of the electromagnetic spectrum, such as: (a) radio waves for broadcasting and RFID, (b) microwaves for satellite TV and mobile phones, (c) infrared for remote controls and thermal imaging, (d) visible light for vision and photography, (e) ultraviolet for security and sterilization, (f) X-rays for medical imaging, and (g) gamma rays for sterilization and cancer detection.
Read the explanation, check the common trap, then practise with flashcards and questions.
Exam focus
- Read the explanation.
- Check key terms.
- Practise with linked questions.
Cambridge IGCSE PhysicsSubject contentCore content