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 beam of parallel light mkgsi8 nbp. 2. m)7/)phoiarc with a f8 bv.0+clykr wavelength of $λ$ is incident on a narrow slit. A diffraction pattern is formed on a distant screen. The angle of diffraction between the central maximum and the first minimum is $θ$. What would be the angle of the first diffraction minimum for the light with a wavelength of $3λ$?
A. 3 θ
B. 2 θ
C. θ
D. $\frac{3}{ θ}$
参考答案: A
本题详细解析:
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