单选题:在简谐波传播过程中,沿传播方向相距λ/2(λ为波长)的两点的振动速度必定( )。 题目分类:公共基础 题目类型:单选题 查看权限:VIP 题目内容: 在简谐波传播过程中,沿传播方向相距λ/2(λ为波长)的两点的振动速度必定( )。 A.大小相同,而方向相反 B.大小和方向均相同 C.大小不同,方向相同 D.大小不同,而方向相反 参考答案: 答案解析:
一横波沿绳子传播时的波动方程为y=0.05Cos(4πχ-10πt)(SI),则( )。 一横波沿绳子传播时的波动方程为y=0.05Cos(4πχ-10πt)(SI),则( )。 A.波长为0.5m B.波长为0.05m C.波速为25m/s D. 分类:公共基础 题型:单选题 查看答案
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回答题:Life is difficultIt is a great truth because once we tru 回答题:Life is difficultIt is a great truth because once we truly understand and ac 分类:公共基础 题型:单选题 查看答案