本题目来源于试卷: Physics Unit29: Molecules and Solids，类别为 国际高中通用物理
[单选题]
The energy gap between the valence and cbm xpt*.g - f0kupzw0 0cgoy(lxk948ronduction bands in a cer)*a9 yqe g2gogtsw -ofk)mx663p. v catain semiconductor is 1.25 eV. What is the threshold wavelengt6g)- okg6o a.3t)mpy2vw ax9q*gfse ch for optical absorption in this substance?
A. $599 \; nm$
B. $959 \; nm$
C. $873 \; nm$
D. $995 \; nm$
参考答案: D
本题详细解析:
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