GradeGen

The separation of white light into colours because different wavelengths travel at different speeds and refract by different amounts in a material.

Refraction at the two faces separates the colours, producing a spectrum. This separation is called dispersion.

Do not say that a prism creates colours. White light already contains a mixture of colours; the prism separates them by dispersion.

The separation of white light into colours because different wavelengths travel at different speeds and refract by different amounts in a material.

Refraction at the two faces separates the colours, producing a spectrum. This separation is called dispersion.

Do not say that a prism creates colours. White light already contains a mixture of colours; the prism separates them by dispersion.

Dispersion