spectral reflectance
Quick Summary
Spectral reflectance refers to the fraction of incident radiant energy that a surface reflects, varying with the wavelength of the radiation. This property is fundamental to spectrophotometry, a branch of spectroscopy focused on measuring transmitted or reflected radiant energy across different wavelengths of the electromagnetic spectrum.12
When light interacts with matter, it can be reflected or refracted. The unique reflectance and emission properties of different materials across the electromagnetic spectrum are key to their identification. Spectrophotometers are instruments designed to measure these interactions, covering ranges from X-rays to microwaves. Laws like Bouguer's and Beer's describe how radiant energy is absorbed by a medium, which is inversely related to reflectance. Understanding spectral reflectance is crucial in fields like chemistry for analyzing substances and their concentrations.312
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