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Electromagnetic Spectrum (A range of all electromagnetic waves put…
Electromagnetic Spectrum (A range of all electromagnetic waves put together)
Visible Light
Sight
Camera to click pictures
Optical fibre for transmitting data
Infra-red Radiation
Hot objects emit it
To heat up food, TV Remotes, Thermal imaging, Motion sensors, Optical fibres use infrared radiation because they can undergo total internal reflection
Ultraviolet Radiation
Flourescent lamps for security marking
Countefeit banknote detection
Sun tan
Microwaves
Man made transmitter
Heating food, Wifi communication, telecommunication
Used for telecommunication because they can penetrate the earth's atmosphere
Radio waves
Man made transmitters
Used for satellite communication, Broadcast
Used for long range communication because they can be reflected back from the earth's atmosphere
Gamma rays (nuclear radiation)
Cause cancer
Treat cancer
Xrays
Medical diagnosis (to detect cracks in bones)
To detect cracks in heavy machinery
airport security