ℹ️ Prism Effect (Dispersion)
The prism effect occurs when light passes through a transparent object like a glass prism and is refracted (bent) at different angles. This happens because different wavelengths (colors) of light travel at different speeds in the material, causing them to bend by different amounts. This process is known as dispersion.
White light is made up of a spectrum of colors. When it passes through a prism, the light spectrum separates, creating a rainbow of colors: red, orange, yellow, green, blue, indigo, and violet.
The degree of bending depends on the refractive index of the material for each wavelength.
Newton, I. (1704). Opticks: Or, A Treatise of the Reflections, Refractions, Inflections, and Colours of Light. London: Printed for Sam Smith and Benjamin Walford.