将烛焰位于凸透镜焦点以内,在透镜另一侧可以观察到放大的虚像。把一不透明的光屏置于烛焰与虚像之间,如图所示,则烛焰的像( Template


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tomski将烛焰位于凸透镜焦点以内,在透镜另一侧可以观察到放大的虚像。把一不透明的光屏置于烛焰与虚像之间,如图所示,则烛焰的像( coloring