Physics Unit23: Light and Geometric Optics (id: 9212e5e6e)

本题目来源于试卷: Physics Unit23: Light and Geometric Optics，类别为 通用国际物理

[单选题]
Lenses that are thicker at;x qsq;bmzno1w* -t+m the xqk-y*j/)htd center

A. spread out light rays.
B. bend light rays to a point beyond the lens.
C. have no effect on light rays.
D. reflect light rays back.


参考答案:  B


本题详细解析: 暂无

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