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第12章波動p71範例36
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波動
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Joanne Wu
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Mar 25, 2013, 10:44:20 AM
3/25/13
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to feynm...@googlegroups.com
光碟編號120811
請問第二次聲音最小的x坐標
老師在光碟裡面並沒有說明
請問是因為該點位在x軸上,且通過第二節線,
所以用波程差PS1-PS2=3去算嗎?
感謝回答~~
討論區板主
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Apr 9, 2013, 6:22:01 AM
4/9/13
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您好:不好意思,近日事忙晚回覆了...
不是PS1-PS2=3,是因為兩波源之間的距離=2.5λ時,此時會產生6條節線。
請參考120805
。
退化的節線跟x軸平行,不在x軸上。
所以跟x軸會產生交點的只有4條。只算原點右方就只有兩條。
Joanne Wu於 2013年3月25日星期一UTC+8下午10時44分20秒寫道:
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