What is the path of a light ray that passes from a higher to lower index of refraction?

When a light ray passes from a medium with a higher index of refraction to one with a lower index, it bends away from the normal line at the boundary between the two media. This phenomenon occurs due to the change in speed of light as it moves between different materials. The angle of incidence is greater than the angle of refraction, leading to a more oblique path in the lower-index medium. According to Snell's Law, this relationship can be quantitatively described by the ratio of the sines of the angles and the indices of refraction.