本题目来源于试卷: Physics Unit23: Light and Geometric Optics，类别为 通用国际物理
[单选题]
Light enters a substance frn :),n,shq*gx,g . gna1yh5e lip-trgom aiubs 7*p+pij+pr ;almzgm-s9m (stx;4n wj( x9r at $30.0^{\circ}$ to the normal. It continues through the substance at $23.0^{\circ}$ to the normal. What would be the critical angle for this substance?
A. $53.0^{\circ}$
B. $51.4^{\circ}$
C. $36.7^{\circ}$
D. $12.6^{\circ}$
参考答案: B
本题详细解析:
暂无
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