本题目来源于试卷: Physics Unit24: Wave Nature of Light，类别为 通用国际物理
[单选题]
A convex lens is placed on a flat glass plate and il/:9 lsjvy(cs mluminated fromipc *ojwc7 6vul 9s*r) above with monochromatic red light. When viewed from abu cc o*j7li)w6p9 svr*ove, concentric bands of red and dark are observed. What does one observe at the exact center of the lens where the lens and the glass plate are in direct contact?
A. a bright red spot
B. a dark spot
C. a rainbow of color
D. a bright spot that is some color other than red
参考答案: B
本题详细解析:
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