本题目来源于试卷: Diffraction grating，类别为 美国物理杯赛(Physics Bowl)
[单选题]
17.41: Pure red lighc:.shvu 67jyxl yia+ 0(na / x tes(3y )u6p*rw6a -oc,f qj(,daspangt shines through a diffraction grating of 1200 lines/cm and produces an interference pattern on a screen a distance 5.0 m away. Which one of the following choices best wa d o* ua yef6a),pgx6s,t( nr(c -aps/(nq3jrepresents the distance between the first and third principal bright spots on the screen?
A. 0.02 m
B. 0.10 m
C. 1.0 m
D. 2.0 m
E. 4.0 m
参考答案: C
本题详细解析:
暂无
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