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Wave Behavior C.3 Refraction Diffraction Superposition Interference (id: 516d51b

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admin 发表于 2024-2-7 21:19:46 | 显示全部楼层 |阅读模式
本题目来源于试卷: Wave Behavior C.3 Refraction Diffraction Superposition Interference,类别为 IB物理学

[填空题]
Light of wavelength c6el1c wcey/)nb a;l 1:ntii1o mk*aoq o 1r4)/fjag8$400\,nm$ and $700\,nm$ is incident on a diffraction grating that has 700 rulings per$mm$. A series of bright lines are formed on a screen. The angles for different maxima for the light are shown.


1.(1)In order to observe bright lines on the screen, the light incident on the diffraction grating must be coherent. What is meant by coherent light?
(2)Find the value for $\frac{sin θ_1}{sin θ_2}$ =   .
2.(1)Determine the maximum number of bright fringes of the same colour that can be observed on the screen.
(2)For the same wavelength of light, what change can be made to the arrangement to increase the number of bright lines observed?




参考答案: 0.27±2%


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