题目内容

光波的频率仅由光源（）决定而与传播（）无关

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两列或两列以上的波在空间一点相遇能产生干涉(或相干叠加)的条件为：（）（）（）

相对光强与振幅的平方成正比。

A. 对
B. 错

A.She wanted to tell her fans at a special time.B.She was too happy to keep it a secret.C.She was too excited to share it with others.D.She wanted her fans to respect her more.

A.She slapped a 20-year-old actress.B.She was no longer admired by teenagers.C.She was not used to being admired by her fans.D.She gave no reasons for what she did last year.