本题目来源于试卷: Reflection and Refraction，类别为 美国物理杯赛(Physics Bowl)
[单选题]
01.28: Light travels from material Xvob5 hvj:xs2* vfs yv.k 366ox with an index of rm98*c8 t tmsilefraction of n = 1.5 to material Y with an index of refraction of n = 2.0. If the speed of light in material Y is v, what is the speed of light *m89lctm i8ts in material X?
A. 0.56 v
B. 0.75 v
C. 1.33 v
D. 1.78 v
E. 3.0 v
参考答案: C
本题详细解析:
暂无
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