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初中物理教材中对太阳光 (白光 )的成份进行了分析 ,但学生对物体颜色往往难以理解和掌握。例如 :一块在日光照射下为白色的布 ,在红光照射下成什么颜色 ?一束白光通过在白光照射下为绿色的玻璃后 ,光束将有何变化 ?在日光照射下为黄色的布在红光照射下成什么颜色 ?等等。对这
The composition of sunlight (white light) is analyzed in junior middle school physics textbooks, but students often have difficulty understanding and mastering the colors of objects. For example: What is the color of a piece of cloth that is white in daylight under red light? What will happen to a beam of white light that passes through a glass of green light under white light? A cloth that is yellow under sunlight What color is illuminated by red light? To this