一、填空题1．光从空气斜射入水或其他介质时，折射光线与人射光线、法线在＿上，折射光线和人射光线分居法线的＿侧，折射角．人射角．当光线垂直射向介质表面时，传播方向＿．2．当光从水或其他介质射向空气中时，如果光线与界面不垂直，那么折射角必定＿人射角．人射角减小 First, fill in the blank 1. When light enters water or other medium obliquely from air, the refracted ray and the person ray, the normal is on _, the refracted ray and the person ray are separated from the side of the normal, the refraction angle. People shooting angle. When the light is directed perpendicularly to the surface of the medium, the direction of propagation is _. 2. When light is emitted from water or other medium into the air, if the light is not perpendicular to the interface, the refraction angle must be Reduced person firing angle