我知道向住一個圓柱體講野係會大聲過
其他形狀的，係有一個科學原理，
請問係咩呢?
thx
唔好亂答......
有關傳聲的科學原理(急......15點)
2009-03-23 4:56 am
回答 (2)
2009-04-01 5:12 am
only simply as reflection ~
2009-03-31 21:14:01 補充：
since circle surface will make the incident angle varies at different points when the particles towards the cylinder.
2009-03-31 21:14:01 補充：
since circle surface will make the incident angle varies at different points when the particles towards the cylinder.
2009-03-23 7:35 am
好似話係基音既頻率不一~
收錄日期: 2021-04-23 20:22:17
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090322000051KK01831