問答題立方晶體d=a/(h2+k2+l21/2,已知晶胞參數(shù)a=0.405nm,射線波長λ=0.154nm,試計(jì)算其(200)晶面衍射2θ角[假定arcsin(0.38)≈22.36度,保留小數(shù)點(diǎn)后兩位]

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