Physics Unit22: Electromagnetic Waves (id: 9aec25da3)

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

[单选题]
The force per unit area exerted by an elc. suv0z( hl0n9x/pe;:ojxeiq /, aeh ectromagn + jbf1sp i-ds1bxh.*ketic wave is called the

A. energy density.
B. power.
C. intensity.
D. radiation pressure.


参考答案:  D


本题详细解析: 暂无

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