A science question

2006-10-16 3:17 am
What is the colour of a red paper when green light is shone on it? Explain your answer.

回答 (1)

2006-10-16 3:25 am
✔ 最佳答案
if the red paper and green light you talking about is primary red and green.... then it will appear bleck... since the red paper will only reflect pure red light... but there are no red component in green light... so there are no light can be reflected and this mean you will see black.
if the green light or the red paper contain some component of other light.. then depends on the percentage component, the colour differs...


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