How do color filters affect the appearance of objects in white light?
I predict that the red object will appear red in red light but black in blue and green light. The blue object will appear blue in blue light and black in red and green light. This is because the color of the object, such as a red object, will reflect its own color of light and absorb the color that the object does not reflect. For example, the red object will reflect red in red light and black in blue & green light. However for the yellow object, since it is made of two primary colors of light (red & green), this principle should work differently. I predict the yellow object will reflect red in red light and green in green light because those colors of light make up yellow. However, I predict, in blue light, the yellow object will be black because there is no green or red light for the object to reflect.
red object (binder cover)
blue object (Barrel of Monkeys)
yellow object (candle)
red, green, blue cellophane (to cover flashlight & top of the shoebox)
Take the shoebox, make sure there is a large rectangular hole on top of box and a circular hole on the one side of the box.
Tape the red sheet of cellophane, making sure it is doubled up in order to get a clear red color, to the rectangular hole on the top of the box and to the flashlight.
Darken the room and place all of the multicolor objects in the box and shine the flashlight in small circular hole on the side of the box.
Observe the color of the objects in the red light and record the data.
Repeat the steps (2-5). However, use the different colors of cellophane when covering the rectangular hole and flashlight.
This table r...
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... each object. Along with a different box, I would use a different yellow object. The yellow object I used was not a deep, bright shade of yellow, but rather a light shade of yellow. Also, the yellow object, a candle, was very glossy which sort of made the results slightly unclear. The next thing I would change in the experiment is the strength of the flashlight. The flashlight had a weaker brightness and an off-white color, which did not let the light completely reach all of the parts of the objects effectively. However, I would not only change the materials if I did the experiment again, I would also add on to the experiment. Along with primary color filters, I would use secondary color filters to see the effects those colors have on different colored objects. Hopefully, with more variables and better materials, I can broaden my knowledge on light and the colors.
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