1 or 2 是正確???
1.a beam of green light falls on a yellow filter and a blue filter,what
happens to the light after passing through these two filters?
--------------- balck light comes out from it.
2.a beam of green light falls on a yellow filter and a blue filter,what
happens to the light after passing throughthese two filters?
-------------------- No light comes out from it.
1 or 2 是正確???
or other correct answer????
form3phy. light colour filter 誰是正確???
2007-04-21 6:40 pm
回答 (2)
2007-04-21 6:45 pm
✔ 最佳答案
The answer is 2.It is because
RED, Green & Blue are 3 primary color, so
Green light --> Yellow filter --> Green light --> Blue filter --> No light
2007-04-22 00:50:55 補充：
Purpose of filter is to block the light with different colors, i.e. not allowed to pass through.So, Green light can pass through Yellow filter, but green light can't pass through blue filter.
參考: myself
2008-12-09 4:42 am
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收錄日期: 2021-04-29 18:03:01
原文連結 [永久失效]:
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