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The electromagnetic spectrum
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The big picture

The big picture

Electromagnetic spectrum from radio waves to gamma rays, with visible light shown as a narrow band from red to violet and arrows showing wavelength decreasing while frequency increases

The electromagnetic spectrum is the continuous range of electromagnetic waves, from radio waves to gamma rays. Visible light is only a small band in the middle, between infrared and ultraviolet.

The electromagnetic spectrum Lesson

  1. IGCSE
  2. /Physics
  3. /The electromagnetic spectrum

Step-by-step lessons on Edexcel IGCSE Physics The electromagnetic spectrum. Each one builds up to exam-style questions. Build a strong foundation in mechanics and electricity before tackling the more mathematically demanding astrophysics and nuclear topics.

Lessons