Light refraction is the bending of light as it passes from one medium to another, such as from air into water. This change in speed causes the light to change direction, which is why objects appear distorted when viewed through water. The degree of bending depends on the angle of incidence and the refractive indices of the two media involved. A common example of light refraction is seen with a straw in a glass of water. When you look at the straw, it appears to be broken or shifted at the water's surface due to the refraction of light. This phenomenon is also responsible for the formation of rainbows, where light bends through water droplets in the atmosphere.