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]
An optical fiber is 1.0 menifx fwm *ph,bq8 7r 5f(-l7tst./pd9*qdy ymm -,ng oii+hp p(er long and has a diameter of 20 mm. Its ends are perpendicular to its axis. Its index of refraction is 1.30. What is the maximum number of reflections a light ray entering one end will make before it emerges from the othem.gy *i pmy,dhi 9d -+on/p(qpr end?
A. 42,000
B. 26,000
C. 24,000
D. 18,000
参考答案: A
本题详细解析:
暂无
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