光的折射定律的英语表述如下：
光的折射定律（英语：Law of refraction of light）。
当光从真空（或空气）中进入某种介质发生折射（refraction）时，此定律描述了光线的偏折行为。
以上是关于光的折射定律的英语表述，供您参考。
Example Question:
Consider a ray of light traveling from air into water. According to the law of refraction, what is the angle of incidence for this ray?
Answer:
The angle of incidence is the angle between the incoming ray and the surface of the medium. For a ray traveling from air into water, the angle of incidence will be greater in the air than in the water because the index of refraction of the air is less than that of the water.
Therefore, to answer the question above, the angle of incidence for the ray would be greater in air than in water.
