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 e .ohbmltr).( dxperiment is setup as shown, including a mono 5g5pf+ ; r: ,g. *pcdnjwhhraechromatic source, a sing a:;dwh *p.h5p+5e cggjrrf, nle slit, a double slit and a screen. What is the purpose 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