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什么是光的传播方向改变的角？许多人对此认识不清．请看重庆市重点中学招生的一道试题：平面镜可以改变光的传播方向，与镜面成35O角的光线射到平面镜上，光的传播方向改变了、度．许多同学这样解：人射角为op一35“＝55“，依据反射定律，反射光线与人射光线之间的夹角为2X55
What is the change of direction of light propagation? Many people do not understand this. Please see a test of the key secondary schools in Chongqing: The plane mirror can change the direction of light propagation, and the light with a mirror angle of 35o hits the plane mirror. The direction of light propagation has changed. A lot of classmates solved this way: The angle of the person’s shooting angle is 35 “= 55”. According to the law of reflection, the angle between the reflected light and the human beam is 2X55.