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Rainbows are formed through refraction. The refraction happens through the rain drops, causing the light (which is made up of a spectrum of colours) to split and causes a rainbow.
Richard Of York Gave Battle In Vain -> Red, Orange, Yellow, Green, Blue, Indigo and Violet. This is the order in which it refracts.
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Why would you never see a rainbow in the southern sky if you were in the northern hemisphere?
The diffraction of light from thesunto form arainbowrelies on the sun being behind the observer.In general terms when you are in the northern hemisphere the sun is always south of you, even if its by a tiny amount, so the rainbow will always be north of you. This means you will not see a rainbow (caused by the sun) in the southern sky.To be absolutely accurate however due to the axial tilt of the earth there is a zone near theequatorwhere the sun is in fact slightly north of you for about half the year and you are still in the northern hemisphere (which comes from the position of the equator not the sun). In this zone it is possible so see a rainbow in the southern sky.
Why is the sun shining on the raindrops important in making a rainbow?
becasue the rain bends the light from the sun thus casueing a rainbow The raindrops act as a prism and refract the light from the sun, causing it to break up into the colors of the spectrum. This happens because the color we see depends on the angle of refraction. Passing through a prism or a raindrop, different parts of the light are bent by different amounts, and so they get separated.
Why don't you a rainbow during a thunderstorm?
As during a thunder storm there is very little light from the sun. so the light cant travel through the rain drops. thus making it impossible to have a rainbow
What is a rainbow?
It is a rule that violet light bend that most and red color bend least way. Most of the light passes through the rain drop. Because of bending of colors in different ways and on different angle each color that emerges from raindrop produce a spectrum of colors. As only single color from each drop reaches to observer, so there are number of raindrops from which each rain drop reflect the light back to an observer at slightly different angle, as to produce different primary colors of rainbow. Secondary rainbow appears above the primary rainbow. When two colors reflection occur inside a raindrop at such angle that it results into secondary rainbow. When weaker light that start emerging to produce a dimmer rainbow effect. Refraction happens as light enters and leaves a prism. Red light is refracted the least and violet light is refracted the most. This causes the different colours in the light to spread out to form a spectrum. Separating the colours like this is called dispersion. We say that the light has been dispersed.
When does a solar eclipse occurs why?
when the moon is in line with the sun a solar eclipse happens and most times it is at a different angle to the sun so it rarely ever happens.
What angle do you have to be at to see a rainbow?
One doesn't have to be at any specific angle to see a rainbow. What is Dependent on seeing the rainbow is the location of the rain, and sun relative to you. The sun is always behind a rainbow when seen. So you would be in front of the rainbow, rain, and the sun. Also, No two people see the same rainbow unless a picture or video was taken of the rainbow.
Why the rainbow is always a semicircle?
becaz the critical angle of rainbow is so large......
Do rainbows appear in the same place on different days?
If you are in the same place, the rainbow will always appear in the same place because it all has to do with the angle you are at in relation to the sun (42 degrees - see the related link). So if you are always in the same spot (e.g. at your desk at work), the sun will be coming from the same same angle, creating the rainbow in the same spot. My understanding of what I've read, you'll only see a rainbow in a certain place in the sky from the same spot at a certain time of the year because the sun moves depending on the season. Also, it is not only the angle of the sun but also the height of it that has to be the same.
Why is a rainbow curved?
Answer 1:A rainbow is curved because of the way that light shines - it forms into a curved shape.Answer 2:A rainbow is curved because the light that makes it up comes through the atmospherewhich is curved around the planet, it includes every colour of the light spectrum.Answer #3:A rainbow is curved because at every point on the rainbow, the angle between theline to the sun and the line to you has to be 42 degrees ... at any other angle, thelight leaving the water droplet misses you and you don't see it.A great number of points where that angle is true form a circle.(Of course, only the ones that are above the ground can participate in the process.The ones that are underground either can't see the sun or can't see you, and there'sprobably no water droplets there anyway, so there's no path for the light to go fromthe sun to the point underground and then to you, and you don't see a full circle.)
How come when you get close to rainbow it seem as if it further back?
The rainbow is an optical effect caused by the angle at which the sunlight hits the water droplets in the air. As you move, this angle remains the same, so the rainbow appears to move.
Can you see a rainbow if you stand with your back towards the sun?
For a rainbow you need rain and sunshine at the same time. So this is possible on a partly cloudy day.
Why the rainbow is semi circle in shape?
Actually it is circular but usually the sun needs to be quite low in the sky for the angle of the sunbeams hitting the raindrops to be suitable to create a rainbow visible from the ground. But, when that happens, a part of the rainbow is cut-off by the horizon and so it appears semicircular. Full circles are rare but have been seen/photographed.
When does Iris' symbol appear?
After it rains, and the sun comes out. Iris' symbol is a rainbow so after the rain comes a rainbow.
Do tornadoes cast a shadow?
Not usually. Tornadoes form during thunderstorms, so unless the sun is at a certain angle, then clouds between the tornado and the sun prevent it from casting a shadow.
Which chemicals make a rainbow?
A rainbow is formed as a full visible spectrum, where there is a completely graded system of particle size, or of viewing angle. The common airborne rainbow is composed of water droplets, which, depending on the observers angle, span the full visible spectrum. You may also see a rainbow of colour on the surface of a CD, where the grooves form a diffraction grating. Another different rainbow is formed when a thin film of one liquid is spread out over another fluid - without mixing. This is your common gasoline rainbow on a puddle. Back in the day when film transparencies were commonly mounted in glass covers, then 'Newton's Rings' of a rainbow may show as the angle between the media change. And of course, a rainbow is formed when white light passes through a prism - the chandelier and the diamond ring are examples. So, the phenomenon is one of angle, not particularly of chemical nature.
Why would you never see a rainbow in the southern sky if you were in the northern hemisphere?
The diffraction of light from thesunto form arainbowrelies on the sun being behind the observer.In general terms when you are in the northern hemisphere the sun is always south of you, even if its by a tiny amount, so the rainbow will always be north of you. This means you will not see a rainbow (caused by the sun) in the southern sky.To be absolutely accurate however due to the axial tilt of the earth there is a zone near theequatorwhere the sun is in fact slightly north of you for about half the year and you are still in the northern hemisphere (which comes from the position of the equator not the sun). In this zone it is possible so see a rainbow in the southern sky.
Are rainbows always in the east?
No. A rainbow is always in the direction you look with the light coming from behind you. So if the sun is in the east, the rainbow will be in the west.
