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Electromagnetic Spectrum
As you move from gamma rays to radio waves,
- Wavelength increases
- Frequency decreases
- Energy decreases
Uses of electromagnetic radiations
- Radio waves: broadcasting and communications
- Microwaves: cooking and satellite transmissions
- Infrared: heaters and night vision equipment
- Visible light: optical fibers and photography
- Ultraviolet: fluorescent lamps
- X rays: observing the internal structure of objects and materials and medical applications
- Gamma rays: sterilizing food and medical equipment
Detrimental effects of excessive exposure to electromagnetic waves
- Microwaves: internal heating of body tissue
- Infrared: skin burns
- Ultraviolet: damage to surface cells and blindness
- Gamma rays: cancer, mutation