更新1:
點解無 image既?? 呢個情況會見到d乜??
complete the ray diagram
回答 (2)
2009-04-04 12:12 am
✔ 最佳答案
圖片參考：http://img142.imageshack.us/img142/8898/34082613410d0065b688.jpg
When a ray is parallel to the principle axie,it will bend to the focal length.
2009-04-06 13:04:37 補充：
冇oject,當然冇image.
2009-04-06 13:05:56 補充：
2條普通的光線經過透鏡,產生折射因此改變了傳播方向
參考: myself
2009-04-10 6:56 pm
thx a lot
收錄日期: 2021-04-25 23:19:30
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090403000051KK00696