#1 question
Sometimes , we cannot see the writings clearly on a blackboard due to glare.
咁咩現象可以解釋到呢

1 regular reflection
2 diffuse reflection
3 refraction of light
6/17 17:58
wilson29

#2 回復 #1 wilson29 的帖子
regular reflection 吧...= =
6/17 18:07
alanyip14532

#3
我其實諗緊點解唔系diffuse flection
6/17 18:12
wilson29

#4 回復 #3 wilson29 的帖子
..

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