Electromagnetic spectrum: Difference between revisions

From Citizendium
Jump to navigation Jump to search
imported>Alex MacDonald
No edit summary
imported>Alex MacDonald
No edit summary
Line 4: Line 4:
== Electromagnetic radiation ==
== Electromagnetic radiation ==


All electromagnetic radiation can be described in terms of its [[Energy]], [[frequency]] or [[wavelength]]. These properties are all related by the following equations:
All electromagnetic radiation can be described in terms of its [[Energy]] (E), [[frequency]](f) or [[wavelength]](\lambda). These properties are all related by the following equations:


:<math>\lambda = \frac{c}{f}  \,\!</math> ,
:<math>\lambda = \frac{c}{f}  \,\!</math> ,

Revision as of 13:04, 9 August 2007

The Electromagnetic Spectrum is the name given to the range of Electromagnetic radiation covering all frequencies and wavelengths. It includes radio and TV transmission, Microwaves, Infrared, visible light, Ultraviolet, X-rays, and Gamma rays.


Electromagnetic radiation

All electromagnetic radiation can be described in terms of its Energy (E), frequency(f) or wavelength(\lambda). These properties are all related by the following equations:

,
,

where c = 299,792,458 m/s (the speed of light) and h = 6.626 x 10-34 Js (Planck's constant)