GCSE Physics

Electromagnetic  Spectrum

The only special thing about light is that our eyes can detect it. However, it is just a tiny part of a collection of electromagnetic waves that make up the electromagnetic spectrum.

They all have things in common. In a vacuum, they all travel at the same speed - the speed of light - which is 3 × 108 m/s.

They are all transverse waves, with the oscillations being electric and magnetic fields. Like all waves, they can be reflected, refracted and diffracted.

GCSE PhysicsWaves Menu GCSE PhysicsGo to next page