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?
- 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.
Traveling 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 ...
Please log in to view and download the complete transcript.