Mixing Light Colors: Is There a Theory?

Click For Summary
A purple object appears black when illuminated by green light due to the principles of additive color mixing, where the absence of red and blue light results in the perception of black. The discussion seeks to explore theories related to color mixing, specifically how different light colors interact with objects of various hues. The concepts of subtractive and additive color models are relevant to understanding these interactions. Resources like Wikipedia provide foundational knowledge on these theories. Understanding these principles is essential for comprehending how light color affects the appearance of objects.
martinbandung
Messages
7
Reaction score
0
OP warned about not using the HH template
the problem is
the purple object will seem to be black if the object is illuminated by what color of light?

i want to know if there is a theory that discuss about this, or the mixing of light color.
Thank you for your help
 
Physics news on Phys.org
Thread 'Correct statement about size of wire to produce larger extension'
The answer is (B) but I don't really understand why. Based on formula of Young Modulus: $$x=\frac{FL}{AE}$$ The second wire made of the same material so it means they have same Young Modulus. Larger extension means larger value of ##x## so to get larger value of ##x## we can increase ##F## and ##L## and decrease ##A## I am not sure whether there is change in ##F## for first and second wire so I will just assume ##F## does not change. It leaves (B) and (C) as possible options so why is (C)...

Similar threads

  • · Replies 10 ·
Replies
10
Views
596
  • · Replies 8 ·
Replies
8
Views
2K
  • · Replies 207 ·
7
Replies
207
Views
13K
  • · Replies 30 ·
2
Replies
30
Views
2K
  • · Replies 4 ·
Replies
4
Views
3K
Replies
6
Views
2K
Replies
26
Views
2K
  • · Replies 21 ·
Replies
21
Views
1K
  • · Replies 20 ·
Replies
20
Views
2K