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PhysicsThe Human Eye and the Colourful World
Prism Dispersion Lab
See how each colour deviates differently through a prism.
Controls
60 °
Live result
Refractive index
1.523
Minimum deviation δ
39.19°
Deviation39.19
Dispersion through a prismRefractive index: 1.523
Violet has the largest refractive index, so it deviates the most — that's why it lies at the bottom of a spectrum.