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小明将一个苹果从距凸透镜一倍焦距处沿主光轴移到距凸透镜4倍焦距处时,则苹果所成的像的大小为()。
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小明将一个苹果从距凸透镜一倍焦距处沿主光轴移到距凸透镜4倍焦距处时,则苹果所成的像的大小为()。
A、不变
B、逐渐减小
C、先变大后变小
D、先变小后变大
时间:2022-06-29 07:04
关键词:
物理学科专业知识
初级中学物理
CMS专题
答案解析
B
根据凸透镜成像规律可知B选项正确
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