The colour of light is determined by its

The color of light is determined by its wavelength (B). In the electromagnetic spectrum, visible light ranges from approximately 400 nanometers (nm) to 700 nm. Each color corresponds to a specific range of wavelengths: shorter wavelengths appear blue or violet, while longer wavelengths appear red or orange. This relationship between wavelength and color is fundamental to understanding how light interacts with objects and how humans perceive color. Amplitude (A) refers to the intensity or brightness of light, while velocity (D) refers to the speed of light, which remains constant in a vacuum but varies in different mediums. Intensity (C) relates to the amount of energy carried by light waves, affecting brightness rather than color. Thus, wavelength serves as the primary determinant of light’s color, with different wavelengths producing the diverse array of colors observed in nature and technology alike.