What is a rainbow and what causes it?

Answer 1

internal reflection of sunlight inside raindrops and/or mist droplets.

Answer:

Light from the sun appears to be colourless but it is really made up of all seven visible colours (red, orange, yellow, green, blue, indigo and violet). When the "white" sunlight enters a raindrop it breaks up into the various colours (due to a process called refraction) and bounces back out of the drop towards your eyes when it reflects off the rear surface of the raindrop.

For this to occur the sun has to be shining and you have to be between where the sun is in the sky and the rain or mist droplets are located. You can make your own rainbow with a garden hose set to mist on a sunny day or by using a prism,

Answer 2

The raindrop acts as a prism while the white light from the sun splits the white light into 7 colors (red, orange, yellow, green, blue, indigo, and violet), causing a rainbow. When all the sunlight doesn't escape the raindrop the light reflects causing a double rainbow.

The sunlight is reflected at two angles: the normal 40-42 degrees; and also at 50-53 degrees, which causes the second, inverted color, rainbow.

Also if you watch the double rainbow video on YouTube, you can see what it looks like. A double rainbow is a phenomenom of optics that displays a spectrum of light do to the sun shining on droplets of moisture in the atmosphere
Double rainbows are formed by multiple reflections of light inside raindrops. The inner rainbow is brightest and formed by a single internal reflection inside the raindrop. The second rainbow is outside the first and reversed in color order; it is formed by an additional reflection (therefor the reversed color order). The larger and more uniform the raindrops the brighter the rainbows. I have seen three very bright rainbows and heard people say they have seen up to six (at least partial) rainbows.

Answer 3

* There are rainbow after rain because of the sun , the sun has a lots of color in it so it make a rainbow . * And also because the sun is hot .

* I f you want to try it you should follow this step : * you need a bowl of water and put it close to the sun . * wait until you see the rainbow if don't and put it more close to the sun .

Answer 4

there r 2 types of ranbow 1. primary Rainbow- when d Incident ray of sun light doubled refract and singlly reflect on d droplet it causes primary Rainbow. in primary Rainbow red colour exist in outer part and makes 40.8' to the eye contact and red color exist in d inner part and make 42.8' to the eye contact2. secondary Rainbow- when d Incident ray of sun light doubled refract and doubled reflect on d droplet it causes secondary Rainbow. In secondary Rainbow red colour exist in inner part and makes 50.8' to the eye contact and red color exist in d outer part and make 54.52' to the eye contact. * secondary Rainbow is not good visible as primary Rainbow Rainbow causes due 2 d total internal reflection and refraction of sun light when rain occurs and it always views opposite of sun appears.

Answer 5

b'cause of the sunlight falls b/w the droplets & the droplet works like prism it separate the white light in 7 colrs..........

Answer 6

After a rain shower, if the air is moist and the sun comes out a rainbow appears!!!!!!!!! BEAUTIFUL!!!! =]

Answer 7

the light has to to hit the water at a 90 degree angle

Answer 8

After it rains you see a rainbow because, you are seeing the sunlight being reflected onto the rain drops which makes those colours.

:)

Answer 9

leprechauns