若用衍射光栅准确测定一单色可见光的波长,在下列各种光栅常数的光栅中选择哪一种最好?( )A. 1.0×10-1mm B. 5.0x10-1mm C. ...

作者: tihaiku 人气: - 评论: 0
问题 若用衍射光栅准确测定一单色可见光的波长,在下列各种光栅常数的光栅中选择哪一种最好?( )
选项 A. 1.0×10-1mm B. 5.0x10-1mm C. 1.0x10-2mm D. 1.0x10-3mm
答案 D
解析 提示:由光栅公式知,对确定波长同级条纹光栅常数小衍射角大。

相关内容:若用,光栅,测定,可见光,波长,常数,最好,10-1mm,5.0x10-1mm

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