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 placenblvp1-xi+(y d on a flat glass plate anxr.a0* r9dq+.yteo y5 yg)fbud illuminated from above with monochromatic red light. When viewedruaft5yx o9r.q ) b0de.g*y+y from above, 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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