试题与答案

太阳光中包含的某种紫外线的频率为v1,VCD影碟机中读取光盘数字信号的红色激光的

题型:选择题

题目:

太阳光中包含的某种紫外线的频率为v1,VCD影碟机中读取光盘数字信号的红色激光的频率为v2,人体透视使用的X光的频率为v3,则下列说法正确的是(  )

A.这三种频率的大小关系是v1<v2<v3

B.紫外线是原子的内层电子受激发产生的

C.红色激光是原子的外层电子受激发产生的

D.X光是原子核受激发产生的

答案:

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