3.3.3—EM spectrum uses: (a) radio waves
- Syllabus
- 0625–2026–2027
- Objective
- 3.3.3
- Level
- —
3.3.3—EM spectrum uses: (a) radio waves
- Describe typical EM spectrum uses: (a) radio waves: radio/TV, astronomy, RFID (b) microwaves: satellite TV, mobile phones, microwave ovens (c) infrared: grills, remotes, intruder alarms, thermal imaging, optical fibres (d) visible light: vision, photography, illumination (e) ultraviolet: security marking, fake banknote detection, sterilising water (f) X-rays: medical scans, security scanners (g) gamma rays: sterilising food/medical equipment, cancer detection/treatment
ConceptIGCSE Physics