[考古] 台聯95
An object is placed in front of a convex mirror at the distance at the
distance of 30.0 cm.Find the distance between the image abd the mirror and
the lateral magnification if the focal distance of the mirror is 20.0cm
(a)12 cm and +0.4 (b)12 cm and -0.4 (c)60cm and +2.0 (d)60cm and -2.0
(e)15 cm and +0.5
第一個應該是算q 1/30+1/q=1/20 q=60
請問第二個是要算什麼呢@@
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 123.195.15.89
推
07/07 13:59, , 1F
07/07 13:59, 1F
→
07/07 15:23, , 2F
07/07 15:23, 2F
→
07/07 16:23, , 3F
07/07 16:23, 3F
→
07/07 16:23, , 4F
07/07 16:23, 4F
推
07/07 17:11, , 5F
07/07 17:11, 5F
→
07/07 17:23, , 6F
07/07 17:23, 6F
→
07/07 17:23, , 7F
07/07 17:23, 7F
推
07/07 18:40, , 8F
07/07 18:40, 8F
→
07/07 18:43, , 9F
07/07 18:43, 9F
→
07/07 18:48, , 10F
07/07 18:48, 10F
→
07/07 18:48, , 11F
07/07 18:48, 11F
討論串 (同標題文章)