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三棱镜这个特殊光学仪器一般学生家庭都没有,农村学校(尤其是村小)也不多,甚至没有。如何让学生亲手做光的色散实验,知道太阳光由七种颜色的光组成的,我多次试着改进,最后取得一点成功。 实验材料:洗脸盆(或水槽、饭盒)、平面镜、橡皮泥等。 实验方法:在洗脸盆中放入水,将平面镜迎着光斜放入水中,将反射光照在白色屏幕上(白墙、白纸均可),并用橡皮泥将平面镜
Prism This special optical apparatus generally no student families, rural schools (especially small village) is not much, or not. How to let the students do light dispersion experiments, know that the sun is composed of light of seven colors, I tried repeatedly to improve, and finally achieved some success. Experimental materials: washbasin (or sink, lunch box), flat mirror, plasticine and so on. Experimental Methods: Put water in the washbasin, put the flat mirror facing the light obliquely into the water, the reflected light shone on the white screen (white walls, white paper can be), and the plastic mirror flat mirror