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範例:球面鏡的成像特性

取一光亮的大湯匙舉在眼前,注視自己在湯匙凹面上的映像。當湯匙自鼻樑開始 外移至遠處,此映像 (A)一直保持正立 (B)一直保持倒立 (C)先是正立,後來變成倒立 (D)先是倒立,後來變成正立。 【69日大】


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By admin – 2009 年 10 月 09 日

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