作者chieh0206 (ming chieh)
看板NTUBIME102HW
标题[普物] 横波那题
时间Wed Jan 13 01:18:44 2010
Y1=Asin(kx-wt)
Y2=Asin(kx+wt+Q)
Y1+Y2=2Asin(kx+Q/2)cos(wt+Q/2)
带入 X=d
=> kd+Q/2=0 or pi or 2pi ......
=> Q=-2kd
所以 Y2=Asin(kx+wt-2kd) ...#
--
※ 发信站: 批踢踢实业坊(ptt.cc)
◆ From: 140.112.242.142
1F：推 ansonyu:有神快拜!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 01/13 01:21
2F：推 sdg85732:好强!!感激!! 01/13 01:23
3F：推 nerv3890:水欧 01/13 01:25
4F：→ chieh0206: Q 是角度!!! 01/13 01:27
5F：→ chieh0206:若用kd+Q/2=pi,则会出现同界角,所以没差 01/13 01:53
※ 编辑: chieh0206 来自: 140.112.242.142 (01/13 01:54)
※ 编辑: chieh0206 来自: 140.112.242.142 (01/13 01:57)
6F：推 escrowdis:NICE 01/13 01:59
7F：→ ansonyu:你有改啥吗?? 01/13 01:59
8F：→ chieh0206:改推文 小心打错 01/13 02:00
9F：→ chieh0206:不小心打错 01/13 02:02
10F：推 ansonyu:多谢!! 01/13 02:02