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光的反射定律探究实验是义务教育阶段光学中的重点实验,该探究实验的成功与否对学生学好光学知识有至关重要的作用。教材中把一个平面镜放在水平桌面上,再将一张纸板竖直地立在平面镜上,纸板上的直线NO垂直于镜面(图1)。一束光贴着纸板沿某一角度射到O点,经平面镜的反射,沿另一个方向射出,在纸板上用笔描出入射光EO和出射光OF的径迹,得到三线,用量角器量出两角,总结出反射定律。
The light reflection law exploration experiment is the key experiment in compulsory education stage optics. The success of this exploration experiment plays an important role in students’ learning optical knowledge. Teaching materials in a flat mirror on the horizontal desktop, and then a piece of cardboard standing on a straight mirror, cardboard straight line NO perpendicular to the mirror (Figure 1). A beam of light pasted the cardboard along a certain angle to the point O, reflected by the plane mirror, and fired in the other direction. The paper traces the incident light EO and outgoing light OF with a pencil on the cardboard to obtain three lines, Two corners, summed up the law of reflection.