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 meter long and has hlwc4z(f 6:rn,kwf/+ mgztu sir3b4 ;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 emerge;i/f wg4ksztm b3, ru+s from the other 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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