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中考实操：探究凸透镜成像的规律
物理试题9：探索凸透镜成像的规律
实验器材：带刻度光具座1个、焦距为10cm的凸透镜1个、光屏1个、led小光源1个。
实验试题 9:探究凸透镜成像的规律
1.安装与调节(2分)
安装:把 LED 小光源、凸透镜、光屏依次安装在光具座上。(1分)
调节:把 LED 小光源、凸透镜、光屏相互靠近，调整高度使三者的中心大致在同一高度上。(1分)
【光源中心、凸透镜光心、光屏中心三者在同一高度 假如是采用蜡烛，要注意调整烛焰高度
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