Physics Unit22: Electromagnetic Waves (id: 98f3aaa79)

本题目来源于试卷: Physics Unit22: Electromagnetic Waves，类别为 国际高中通用物理

[单选题]
The strength of both the electric and magn (0:s996 ruob fhqrvtl 4pfws;etic fields in the r/g7;gfah0 oy y) hakv.adiation field are found to decrease wi;h .koyga/y0vfh g7 )ath distance as

A. $1/r$
B. $1/r^2$
C. $1/r^3$
D. $1/r^4$


参考答案:  A


本题详细解析: 暂无

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