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The range of electromagnetic radiation in the electromagnetic spectrum is huge. Where does this radiation come from and how do the frequencies and wavelengths vary?Key facts
- Electromagnetic radiation is all around us and its power varies hugely.
- Electromagnetic radiation is measured on the electromagnetic spectrum.
- There are both natural and man-made sources .
- It can be beneficial, harmless or extremely dangerous to us.
Transcript
Travelling at 3x108m/s, electromagnetic radiation is all around us even in the vacuum of space, as it doesn't require any medium to move through.
Speed of electromagnetic radiation = 3x108m/s
This is the speed of light
Its energy is carried in the form of electric and magnetic fields, created by the movement of ...
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