Keywords |
  • Physics


Light is electromagnetic radiation with wavelengths from around 10-6 m (infrared) to 10-9 m (ultraviolet). Light is represented by electromagnetic waves or by photons, according to the wave-particle duality. It travels in a vacuum at a speed c of 3 * 108 m*s-1, one of the fundamental constants of physics.

Electromagnetic radiation Electromagnetic radiation



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