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一折射规律1.内容:折射光线与入射光线、法线在同一平面内,折射光线与入射光线分居法线两侧.当光从空气斜射入水或其他介质中时,折射角小于入射角;当光从水或其他介质斜射入空气中时,折射角大于入射角;当光线垂直射向介质表面时,传播方向不改变.(巧记方法:两种介质、三线共面,法线居中)
A refraction rule 1. Content: The refracted ray is in the same plane as the incident ray and the normal line, and the refracted ray and the incident ray are separated on both sides of the normal line. When the light obliquely enters water or other medium from air, the refraction angle is smaller than the incident angle; When light enters the air obliquely from water or other medium, the angle of refraction is greater than the angle of incidence; when the light is directed perpendicularly to the surface of the medium, the direction of propagation does not change. (Choice method: two media, three lines coplanar, normal center)