中等专业学校教材,工科各专业通用《物理》(第二版)下册第170页有这样一道题.16.5　筷子斜插在盛水的碗里,看上去是弯折的;若垂直插进碗里,看上去没有弯折,为什么?教学参考书,第173页是这样解答的:筷子斜插进水中,来自浸在水中的那一截发出的光,经界面拆射后进入我们的眼睛,所 Secondary professional school textbooks, engineering majors General Physics (Second Edition) Second Volume Page 170 There is such a question. 16.5 Chopsticks inserted obliquely in a bowl of water, looks bent; if inserted vertically into the bowl In the inside, it looks like there is no bending. Why? The teaching reference book, p. 173, is the solution: The chopsticks are inserted into the water obliquely, and the light from the submerged light enters our eyes through the interface. By