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Gaokao Physics Practice Question

在双缝干涉实验中, 一钠灯发出的波长为 $589 \mathrm{~nm}$ 的光, 在距双缝 $1.00 \mathrm{~m}$ 的屏上形成干涉图样. 图样上相邻两明纹中心间距为 $0.350 \mathrm{~cm}$, 则双 缝的间距为

  1. A.$2.06 \times 10^{-7} \mathrm{~m}$
  2. B.$2.06 \times 10^{-4} \mathrm{~m}$
  3. C.$1.68 \times 10^{-4} \mathrm{~m}$
  4. D.$1.68 \times 10^{-3} \mathrm{~m}$

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