皮皮学，免费搜题
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【单选题】
显微镜的数值孔径nsinu=1.0，如用波长为500纳米的光源照明，则显微镜能分辨的两物点之间的最小距离为
A.
105 纳米
B.
200 纳米
C.
305 纳米
D.
400 纳米
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