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โก Physics
Electromagnetic Spectrum
The range of all electromagnetic radiation โ from gamma rays to radio waves โ including visible light
Scotland ๐ฌ๐ง 1865 Physics
Key Facts
- 1
Spectrum in order: gamma rays, X-rays, UV, visible light, infrared, microwaves, radio waves
- 2
Visible light is only 0.0035% of the EM spectrum โ between 380nm (violet) and 740nm (red)
- 3
Applications: radio (communications), microwaves (cooking), X-rays (medical), gamma rays (cancer treatment)
๐ฌ Did you know? James Clerk Maxwell unified electricity and magnetism in 1865 โ predicted electromagnetic waves travelling at the speed of light, proving light is an EM wave
Quick Reference
Category
Physics
Country
๐ฌ๐ง Scotland
Year / Era
1865
About
The range of all electromagnetic radiation โ from gamma rays to radio waves โ including visible light