Light
#1 -
#2 - Opaque objects absorb light, not letting light through. The light it reflects is its color. So, a white board is reflecting red, green, and blue light, so it appears white.
#3 - If you put a "color filter" in front of white light, the light breaks up into different colors - red, orange, yellow, green, blue, indigo, and purple. These colors cannot be broken up any further.
#4 - Overlapping red, green, and blue light gives you white light.
#3 - If you put a "color filter" in front of white light, the light breaks up into different colors - red, orange, yellow, green, blue, indigo, and purple. These colors cannot be broken up any further.
#4 - Overlapping red, green, and blue light gives you white light.