The Electromagnetic Spectrum
- Created by: mairiajarvis
- Created on: 05-05-18 18:56
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Radio Waves
- Source: electronic circuits
- Detector: aerial
- Uses: communications, radio, TV
- Dangers of over exposure: safe unless very concentrated
Microwaves
- Source: electronic circuits
- Detector: aerial
- Uses: communicacions, radio, TV
- Dangers of over exposure: burning if concentrated
Infra Red
- Source: electronic devices, warm objects, sun
- Detector: electronic detectors, heat-sensitive papers, black-bulb thermometer
- Uses: detector in security lighting, remote controls eg TV
- Dangers of over exposure: burning if concentrated
Visible Light
- Source: electronic devices eg LED, sun
- Detector: eye, photographic film, electronic components eg LDR
- Uses: seeing…
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