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 materidk ej8;oh(tk.;wg)dwebbv 0 q8c 78q ial X with an index of refracts9;to1q 3 rtviion of n = 1.5 to material Y with an index of refraction of n = 2.0. If the speed of lighvq1 r t;sto3i9t in material Y is v, what is the speed of light 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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