本题目来源于试卷: SME IB Physics Unit 4 Problems，类别为 IBDP Physics
[单选题]
Young's double-slit experiment is setu ouknft5,8lx*ur g4e1 p as shown, up1-vfl;(zmd including a monochromatic source, a single slit, a double slit and a screen. What is the pu l;z v1(fu dmp-rpose of the single slit in this experiment?
A. To make sure there is equal light intensity in the double-slits
B. To make sure the light is coherent upon the double-slits
C. To decrease light intensity for the double-slits
D. To reduce the wavelength of the light
E. To filter out light rays going in other directions
参考答案: B
本题详细解析:
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Post time 2024-1-26 22:03:40