In a polychromatic light such as white light, the different wavelengths are not entangled or superimposed on top of each other. Instead, they coexist as separate but closely spaced components.
White light is composed of a combination of different wavelengths spanning the visible spectrum, ranging from approximately 400 to 700 nanometers. This spectrum includes colors from violet to red. When white light passes through a prism or diffracts, it can be dispersed into its constituent wavelengths, revealing a continuous spectrum.
Each individual wavelength corresponds to a specific color or shade of light. For example, red light has a longer wavelength, while violet light has a shorter wavelength. These different wavelengths of light do not interfere with or interact with each other in the same way that entangled particles in quantum physics do.
Instead, white light is made up of a multitude of photons, each with its own specific wavelength. These photons of different wavelengths travel independently but close together. As a result, the light we perceive appears "white" because our eyes detect a mixture of all these different wavelengths simultaneously.
When white light encounters a medium that causes dispersion, such as a prism, the different wavelengths bend at slightly different angles due to their differing indices of refraction. This causes the light to spread out, resulting in the separation of the colors and the formation of a spectrum.
In summary, the different wavelengths in polychromatic light like white light coexist as separate but closely spaced components. They are not entangled or superimposed on top of each other, and each wavelength corresponds to a specific color or shade of light.