reflectance spectra

Reflectance spectra are graphs that show how much light is reflected off a surface at different wavelengths (colors) of light. When light hits an object, some colors are absorbed while others are reflected. By measuring the intensity of reflected light at various wavelengths, scientists can create a spectrum that reveals the object's properties. This information is useful in fields like agriculture, environmental monitoring, and astronomy, as it helps identify materials, assess health, and study planetary surfaces based on how they interact with light.