sixpenceee: Sticking tape on a frosted glass makes it see through. Air and glass have a very different refractive index, so if you have a rough glass surface, the incoming light is scattered in all directions, thus blurring the image you see through
sixpenceee: Sticking tape on a frosted glass makes it see through. Air and glass have a very different refractive index, so if you have a rough glass surface, the incoming light is scattered in all directions, thus blurring the image you see through
