👉 Photostability is a concept in the field of physics that describes how the quality and stability of light are affected by changes in wavelength or frequency. It is a measure of the ability of light to maintain its original state or appearance over time, regardless of changes in its intensity or direction. In other words, photostability refers to the ability of light to remain stable even if it undergoes significant changes in its wavelength or frequency. This concept has applications in various fields such as optical devices, photography
