下列有关实验现象的描述正确的是（  ）

光的全反射

一束激光从某种玻璃中射向空气，保持入射点不动，改变入射角(每次增加0.2°)，当入射角增大到引41.8°时，折射光线消失，只存在入射光线与反射光线，这种现象叫做光的全反射，发生这种现象时的入射角叫做这种物质的临界角.当入射角大于临界角时，只发生反射，不发生折射.

根据短文内容判断句子正（T）误(F)。
Welcome to our school. Our school is on Xianyang Street. It’s next to the Xinhua Library. There is a big garden across from our school. The payphone is between our school and the post office. There are three buildings in our school, the students' building, the teachers'building and a library. The teachers in our school are good. Our school yard is very beautiful. If you come to our school from the airport, take a taxi and go along the highway until you see a bridge. Go across the bridge and turn left. Then go straight along the Bridge Street. Our school is on the right.