Light Interference

Light interference occurs when two or more light waves overlap, resulting in a new wave pattern. This can create areas of increased brightness (constructive interference) where the waves align, and areas of darkness (destructive interference) where they cancel each other out. A common example is the colorful patterns seen on soap bubbles or in oil slicks, which arise from varying thicknesses causing different colors to interfere. This phenomenon illustrates the wave nature of light and is key to understanding various optical devices and technologies, such as lenses and lasers.