作者colorya2001 (遨游天空)
站内Physics
标题[问题] 光的反射
时间Wed Nov 19 17:45:37 2008
一束光线射向焦距10cm的小面积凹面镜的虚焦点,经反射後
与主轴的交会点距镜_______cm
Anser: 5cm
--
※ 发信站: 批踢踢实业坊(ptt.cc)
◆ From: 218.162.150.40
1F：→ colorya2001:I don't know how to solve? 11/19 17:48
2F：→ ATPS4869:is this your homework? 11/19 22:43
3F：→ MOONRAKER:smells like homework. 11/19 22:56