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【单选题】
在光栅衍射实验中,为了得到较多的谱线,应该:
A.
适当减小光栅常数 d ;
B.
适当增加光栅常数 d ;
C.
适当减少缝数 N ;
D.
适当增加缝数 N 。
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举一反三
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【简答题】NO.1
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