May 10, 2011

3.11 The Order of the Electromagnetic Spectrum

The Diagram bellow clearly shows the 7 parts of the E-M spectrum in order of decreasing wavelength, from left to right

An easy way to remember the order is with a mnemonic
For example for the E-M spectrum (RMIVUXG)
you could have:
Reading Music Is Very Unsatisfactory for Xylophones and Glockenspiels

and for the visible portion of the spectrum (ROYGBIV)
Richard Of York Gave Battle In Vain

Or just make up your own...


  1. Brilliant mnemonic Frazer - it made me laugh!

  2. or a better one, Randy Men Inject Viagra Until Excessive Growth (got me through my exams)