如图1所示在观察凸透镜成像的实验中有一个步骤是调整蜡烛凸透镜凸透镜和光屏的在同一高度点燃蜡烛应在调整前前.若凸透镜位置不变先后把烛焰 Template




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tomski如图1所示在观察凸透镜成像的实验中有一个步骤是调整蜡烛凸透镜凸透镜和光屏的在同一高度点燃蜡烛应在调整前前.若凸透镜位置不变先后把烛焰 coloring