本题目来源于试卷: Physics Unit24: Wave Nature of Light，类别为 通用国际物理
[单选题]
A He-Ne laser (632.8 nm) is used to calibrate j3 smv3gqdo5vdq0, c (a gr m+):6o 4jbcwahk78z pdxfa(z*snyr 3ating. If the first-order maximum occurs ato7nf(c8s3 6hwzp+ )xad4akz my:jb*r $20.5^{\circ}$, what is the grating constant (the distance between the slits)?
A. $1.81 \; mm$
B. $2.20 \; mm$
C. $3.62 \; mm$
D. $4.52 \; mm$
参考答案: A
本题详细解析:
暂无
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