Explain how a shirt can look green even though the light falling on it contains red, blue, and green. The other one is: Describe a way to use two prisms to remove the colour yellow from a beam of sunlight.
2007-03-05 14:51:51 · 3 answers · asked by ? 3 in Science & Mathematics ➔ Physics
A green shirt absorbs all colors except green light. It reflects green light so that is the color you see.
One prism breaks up the light into all colors. Block the yellow light with your finger. Then put a second prism backwards to put the remaining light together again.
2007-03-05 15:01:11 · answer #1 · answered by Jeffrey K 7 · 0⤊ 0⤋
The red and blue must be absorbed. It must have cyan(absorbs red) and yellow(absorbs blue) pigments but no magenta, which would absorb the green.
Split the light up using one prism. Block out the yellow with a screen. Recombine what's left back with the second prism to give white without yellow!
2007-03-05 23:00:06 · answer #2 · answered by hello 6 · 0⤊ 0⤋
If the shirt reflects only the green light and absorbs the red and blue light, then it would look green.
2007-03-05 22:59:37 · answer #3 · answered by Dennis H 4 · 0⤊ 0⤋