本题目来源于试卷: Physics Unit24: Wave Nature of Light，类别为 通用国际物理
[单选题]
A diffraction grating has 60r6yg-fww huy (b2r7ag /t 9-lx00 lines per cp 8/a(tg-(uvvyw7gwg + xhka8+ya ka,entimeter ruled on it. What is the angular separation between the seh+w87-y,ak8k(pga a(ugvvyx +tg/awcond and the third orders 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:
暂无
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