本题目来源于试卷: Wave Behavior C.3 Refraction Diffraction Superposition Interference，类别为 IB物理学
[单选题]
A parallel beam of light passes through a narrow slit and a diffraction pattern is observed on a distant screen. A student draws a graph to show the variation of the angle of diffraction $θ$ between the central maximum and the first minimum with wavelength $λ$ of the beam.
What can be deduced from the graph and how would the quantity be deduced?
A. Quantity is The angular width of the first maximum;Deduction is The gradient of the graph
B. Quantity is The angular width of the first maximum;Deduction is $\frac{1}{The\,gradient\,of\,the\,graph}$
C. Quantity is Slit width;Deduction is The gradient of the graph
D. Quantity is Slit width;Deduction is $\frac{1}{The\,gradient\,of\,the\,graph}$
参考答案: D
本题详细解析:
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