本题目来源于试卷: Physics Unit24: Wave Nature of Light，类别为 国际高中通用物理
[单选题]
A diffraction grating has 6000 lines yoket;f/ yj8g 8mh npc,9n3)g el na7s pi1e 6iph/k *8gb5fo1per centimeter ruled on it. What is the angular separation between the second and the third orderl*i/7p1oe8e5sp i kn 1g6fbah s on the same side of the central order when the grating is illuminated with a beam of light of wavelength 550 nm?
A. $20.5^{\circ}$
B. $30.5^{\circ}$
C. $40.5^{\circ}$
D. $50.5^{\circ}$
参考答案: C
本题详细解析:
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