200分求一道物理题,求帮助 各种求 懂英文的高手嘞Light with a wavelength of 544.6 nm strikes a single slit that is 0.4 mm wide. The diffraction pattern produced by the slit is observed on a wall a distance of 1.4 m from the slit. (a)

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200分求一道物理题,求帮助 各种求 懂英文的高手嘞Light with a wavelength of 544.6 nm strikes a single slit that is 0.4 mm wide. The diffraction pattern produced by the slit is observed on a wall a distance of 1.4 m from the slit. (a)

200分求一道物理题,求帮助 各种求 懂英文的高手嘞Light with a wavelength of 544.6 nm strikes a single slit that is 0.4 mm wide. The diffraction pattern produced by the slit is observed on a wall a distance of 1.4 m from the slit. (a)
200分求一道物理题,求帮助 各种求 懂英文的高手嘞
Light with a wavelength of 544.6 nm strikes a single slit that is 0.4 mm wide. The diffraction pattern produced by the slit is observed on a wall a distance of 1.4 m from the slit.
(a) What is the distance from the center of the pattern to the first dark fringe?
多少毫米
(b) How wide is the central bright fringe of this diffraction pattern?
多少毫米

200分求一道物理题,求帮助 各种求 懂英文的高手嘞Light with a wavelength of 544.6 nm strikes a single slit that is 0.4 mm wide. The diffraction pattern produced by the slit is observed on a wall a distance of 1.4 m from the slit. (a)
(a) the distance=Ltanθ=Lθ=Lλ/a=1400*544.6×10^(-6)/0.4mm=1.9mm
(b) the wideth=2Ltanθ=3.8mm

中央明条纹的宽度为2λ*f/a,其中λ为光的波长,f为单缝到墙的距离,a为单缝宽度。由此积算为
2*544.6nm*1.4m/0.4mm=0.0038122m=3.81mm
中心到第一暗纹的距离就是上面积算数值的一半,也就是大约1.91mm。

第一问是问第一级暗条纹距中心的距离。
暗条纹特点的方程是:aSinθ=±kλ (k=1,2,3……k级暗条纹)
a为狭缝宽度,此题中a已知,λ已知,k=1已知,所以能算出Sinθ,而距离也是已知(1.4m),所以剩下的就是三角函数的事了
第二问问中央名条纹宽度
中心亮条纹:asinФ=λ
Sinθ=λ/d; x=2D.sinФ=2Dλ/a;

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第一问是问第一级暗条纹距中心的距离。
暗条纹特点的方程是:aSinθ=±kλ (k=1,2,3……k级暗条纹)
a为狭缝宽度,此题中a已知,λ已知,k=1已知,所以能算出Sinθ,而距离也是已知(1.4m),所以剩下的就是三角函数的事了
第二问问中央名条纹宽度
中心亮条纹:asinФ=λ
Sinθ=λ/d; x=2D.sinФ=2Dλ/a;
θ为衍射角,a为单缝大小,D为观察屏与单缝之间的距离
依旧是把数代入,三角函数一算就行了

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题目的大意是:一列波长为544.6nm的光束通过一宽0.4mm的单缝,从距单缝1.4m的屏来观察衍射图样。
(a)第一列暗条纹到图案中心的距离是多少?
(b)衍射图案的中心亮条纹有多宽?
希望对你解题有帮助,具体的解答过程从略。

Light with a wavelength of 544.6 nm strikes a single slit that is 0.4 mm wide. The diffraction pattern produced by the slit is observed on a wall a distance of 1.4 m from the slit.
波长为544.6纳米的光罢工...

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Light with a wavelength of 544.6 nm strikes a single slit that is 0.4 mm wide. The diffraction pattern produced by the slit is observed on a wall a distance of 1.4 m from the slit.
波长为544.6纳米的光罢工的单缝是0.4毫米宽。产生的衍射图样的狭缝观察墙距离1.4米的狭缝。
(a) What is the distance from the center of the pattern to the first dark fringe?
多少毫米
(一个)的距离是什么图案中心的第一个黑条纹?
多少毫米
(b) How wide is the central bright fringe of this diffraction pattern?
多少毫米
(二)全是如何的中央亮条纹的衍射模式?
多少毫米

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题目的大意是:一列波长为544.6nm的光束通过一宽0.4mm的单缝,从距单缝1.4m的屏来观察衍射图样。
(a)第一列暗条纹到图案中心的距离是多少?
(b)衍射图案的中心亮条纹有多宽?
希望对你解题有帮助,具体的解答过程从略
中央明条纹的宽度为2λ*f/a,其中λ为光的波长,f为单缝到墙的距离,a为单缝宽度。由此积算为
2*544.6nm*1.4m/0.4...

全部展开

题目的大意是:一列波长为544.6nm的光束通过一宽0.4mm的单缝,从距单缝1.4m的屏来观察衍射图样。
(a)第一列暗条纹到图案中心的距离是多少?
(b)衍射图案的中心亮条纹有多宽?
希望对你解题有帮助,具体的解答过程从略
中央明条纹的宽度为2λ*f/a,其中λ为光的波长,f为单缝到墙的距离,a为单缝宽度。由此积算为
2*544.6nm*1.4m/0.4mm=0.0038122m=3.81mm
中心到第一暗纹的距离就是上面积算数值的一半,也就是大约1.91mm。

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