相位差等于pi的偶数倍的时候,干涉(),相位差等于pi的奇数倍的时候,干涉()
查看答案
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:()()()
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.