List two everyday observations that provide evidence that light is composed of many colors??

Question

List two everyday observations that provide evidence that light is composed of many colors??

Answer 1

Other explanations than white* light being composed of many colors can be formed from every day observations or it would not have taken the brilliance of a Francesco Maria Grimaldi to discover it.



*I added "white" because your question makes no sense without it.



Edit: Rainbows, soap bubbles and oily water have exited for a very long time. It wasn't the separation, but the recombining of the colors to get white light that provided the evidence needed to conclude your point.

Answer 2

The fact that many different substances reflect a different mix of wavelengths, and we actually see those colors when they are illuminated by the sunlight.

Would it be different if the light were monochromatic? Yes. I have seen it. About 30 years ago I worked as a security guard in San Diego, and I remember one construction site that was in a part of town illuminated by low pressure sodium street lights. Astronomers are big advocates of low pressure sodium street lights, because their spectrum is so narrow it is easy to filter from telescopes and astrophotographs. What do things look like under low pressure sodium light? Yellow. Like a gray scale photograph dyed yellow. I sometimes amused myself by turning on my flashlight to discover the color of objects that were yellow gray under the street lights.

Answer 3

View through soap bubbles, oil film floating on water, seeing through falling water drops (a proper waterfalls would be best, but are not available as household items), any glass prismatic body like ornamental door handles or bars that refract light through them and many more.

Answer 4

Rainbows and Newton's rings (often seen when oil floats on top of water).

Answer 5

rainbows

Answer 6

prisms and rainbows.