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八年级物理上册第五章第1节透镜习题课件（新版）新人教版.ppt

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第五章 透镜及其应用 第1节 透镜,凸透镜,会聚,凹透镜,发散,球心,中心,不改变,焦点,焦距,焦点,焦点,发散,发散光线的反向延长线,平行,C、E,D、E,B、C,A、B、C,D、E、F,F,C、D,A、B、E、F,乙,D,A,D,B,B,C,B,发散,凸透,会聚,透镜越厚，其焦距越短，对光线的偏折能力越强,凸透镜,否,C,

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