Please...someone out there must know
2006-11-03 17:13:24 · 3 answers · asked by kentclark_007 1 in Science & Mathematics ➔ Earth Sciences & Geology
The "apparent angular size" of the rainbow is fixed, regardless of "where the rain is". This is because of the way a spherical droplet of water refracts sunlight into a spectrum of colors, and it's determined solely by the index of refraction of water. A "double rainbow" is due to the fact light can bounce around internally in the droplets, and come out at a different exit angle than the first time.
2006-11-03 19:23:10 · answer #1 · answered by Scythian1950 7 · 0⤊ 0⤋
The distance between you and the rain. The further the rain is, the larger the radius.
Notice when you are looking at a rainbow, the sun is always directly behind you. The sun's rays enter the rain drops and become refracted (split into different colours) and bounces back to your eyes. Sometimes you can see a double rainbow if the sun is bright enough.
2006-11-04 01:23:08 · answer #2 · answered by borscht 6 · 0⤊ 0⤋
WOW, your out there. I cant really answer that, I think it has something to do witht the curve of the earth
2006-11-04 01:17:12 · answer #3 · answered by Anonymous · 0⤊ 0⤋