Light interaction refers to how light behaves when it encounters different materials. This can include processes like reflection, where light bounces off surfaces, and refraction, where light bends as it passes through materials like glass or water. These interactions help us see objects and colors in our environment. Another important aspect of light interaction is absorption, where materials take in light energy. For example, a black shirt absorbs more light than a white shirt, making it feel warmer in sunlight. Understanding these interactions is essential in fields like optics and photography.