试题与答案

如图13-1-8所示,一根竖直插入水中的杆AB,在水中部分长1.0 m,露出水面

题型:实验题

题目:

如图13-1-8所示,一根竖直插入水中的杆AB,在水中部分长1.0 m,露出水面部分长0.3 m,已知水的折射率为.则当阳光与水平面成37°角时,杆AB在水下的影长为_________ m.

图13-1-8

答案:

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从所给的选项中选择适当的句子完成对话(其中有两个多余选项)。

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Andrew: I don't understand it.____1______

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Andrew: _____2______

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