简答题: 如图12—11所示，一条光线从空气中垂直射到棱镜界面BC上，棱镜的折射率<br /> <img src="http://www.weimei168.com/uploads/202208/20130109151175537553.jpg" alt="" border="0" /><br /> <img src="http://www.weimei168.com/uploads/202208/20130109151117781778.jpg" alt="" border="0" />