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KS3 Science - Electromagnetic Spectrum: Visible

A guide to resources on electromagnetic waves, from radio to gamma - their use, danger and occurrence, compiled by your librarians.

Electromagnetic Spectrum - Visible

Properties


Wavelengths and Frequencies of Visible Light

Visible Light Color

Wavelength (in angstroms)

Frequency (times 1014 Hz)

violet

4,000–4,600

7.5–6.5

indigo

4,600–4,750

6.5–6.3

blue

4,750–4,900

6.3–6.1

green

4,900–5,650

6.1–5.3

yellow

5,650–5,750

5.3–5.2

orange

5,750–6,000

5.2–5.0

red

6,000–8,000

5.0–3.7

From Asteroids, Meteorites, and Comets, Revised Edition, Solar System.
  • Visible light wavelengths are perceived as various colors (red, orange, yellow, green, blue, indigo, and violet) by the human eye based on their wavelength
  • Visible radiation ranges in wavelength from around 400 nm to around 700 nm, which is longer than ultraviolet and shorter than X-rays 

Visible Spectrum

Video on Visible light

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