Physics Unit22: Electromagnetic Waves (id: 11d1ff4ed)

本题目来源于试卷: Physics Unit22: Electromagnetic Waves，类别为 通用国际物理

[单选题]
A 15.0-mW laser puts;hyyx/v*h oeop i+ ovbwk;6( +32wzsz out a nn0f3xym d, c1oarrow beam 2.00 mm in diameter. What is the average (rms) value of the electric fieldnf xd3oym c1,0?

A. 0.95 kV/m
B. 1.3 kV/m
C. 1.9 kV/m
D. 2.7 kV/m


参考答案:  B


本题详细解析: 暂无

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