Light that consists of only one color and one specific wavelength is referred to as?

Light that consists of only one color and one specific wavelength is termed monochromatic. This concept is fundamental to understanding various light sources and their applications, particularly within fields such as electrolysis and laser technology.

Monochromatic light is characterized by its uniformity in wavelength, which allows it to be used in precise applications like laser treatments, where specific wavelengths are required to target particular tissues or pigments effectively. The predictability of monochromatic light makes it invaluable in scientific applications where accurate measurements and focused energy delivery are necessary.

In contrast, polychromatic light contains multiple wavelengths, hence a broad spectrum of colors, making it less suitable for applications requiring precision. The other terms provided do not relate to light properties but rather pertain to different concepts altogether; diaphragmatic refers to functions or structures related to diaphragms, and polyhedral relates to geometric shapes. Therefore, monochromatic is the correct term for light of a single wavelength.