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]
95.40: A Metrologic la u h,4pb uf48as+:sqe93cawba3s504ss tbq edser is embedded in a material of index of refraction n. The laser beam emerges from the material and hits a target. See the accompanying figure for the position parame 0s:a 3s4q5e sqs9b +wec 3tbdaters of the laser and target. The value of n is:
A. 1.4
B. 1.5
C. 2.1
D. 3.5
E. 5.0
参考答案: B
本题详细解析:
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