What is Refraction of LightWhen a spoon is immersed into a glass of water, the spoon appears bent or broken as shown in Figure (a). When a part of the word PHYSICS is covered with a glass slab as shown in Figure (b), the covered letters appear displaced. The two situations described are perceptions due to the change of the direction of a light ray when it leaves the … [Read more...] about What is Refraction of Light