why is there rainbow after the rain?

Answer 1

optical illusion. Go to school, you will learn

Answer 2

A rainbow is formed during rain.... not after it. It happens when the sun is in one direction and the rain is in the other. The rainbow appears in the opposite direction from the sun. You will only see a rainbow if the sun is low in the sky (early morning or late afternoon). You will notice that the center of the rainbow's arc is the shadow of your head, so it moves when you move. The actual shape of a rainbow is not an arc at all; it's shaped like a cone. The point of the cone is your eye.

Answer 3

As others have said, it's the water droplets in the air and the way they refract and reflect light.

You can make your own rainbow using a garden hose. With the nozzle set to a "spray" or "sprinkler" setting, turn on the hose. Point the hose at the shadow of the nozzle, and move the hose back and forth a little until the rainbow appears.

Answer 4

A rainbow is an optical and meteorological phenomenon that causes a nearly continuous spectrum of light to appear in the sky when the Sun shines onto droplets of moisture in the Earth's atmosphere. It takes the form of a multicoloured arc, with red on the outside and violet on the inside. Even though a rainbow spans a continuous spectrum of colours, traditionally the full sequence of colours is most commonly cited as red, orange, yellow, green, blue, and violet. It is commonly thought that indigo was included due to the different religious connotations of the numbers six and seven at the time of Isaac Newton's work on light, despite its lack of scientific significance and the poor ability of humans to distinguish colours in the blue portion of the visual spectrum.

Answer 5

Whenever there are drops of water illuminated by the sun, as we can see in certain fountains, it is decided that rainbows arose only from the way in which the rays of light act on these drops and pass from them to our eyes.

After rain there are water drops in the sky.

Therefore rainbow is seen whhenever water drops are in the sky.

Answer 6

What you are seeing is sunlight reflecting off the curved inner surfaces of raindrops which are still falling in the distance, and refracted as in a prism - the curved raindrop reflects all the wavelengths of sunlight to your eye at a slightly different angle, which is why you see the component colours of white light 'smeared' out across the sky, i.e. a rainbow.

Incidentally the second, fainter rainbow is due to the light being reflected 3 times in each raindrop - i.e. off the back, then front, then back again.

Answer 7

It is because the white light we see everyday is made up of 7 colors combined together. Rainbow after rain is because there are alot of water vapour in the air and it 'diffuse' the white light into the 7 original colors.

Answer 8

Need conditions to just be right to see a rainbow. For one you need rain. you could see a rainbow before rain too.

Answer 9

This happens because of the dispersion of white light.
When the sunlight(white light) enters a prism(over here the raindrop acts as one), it disperses and the spectrum of seven colours appears which is what you can see as a rainbow.

Go on try the experiment. Just take a prism and keep it in the direction of the sunlight and observe the colours dispersing.

Answer 10

after rain the atmosphere gets filled with tiny drops of water.these tiny drops of water act as a prism and hence split up the light in to its seven colours.due to their variable wavelength they appear as a band with one above the other.this is by dispersion of light.

Answer 11

A promise in the bible, that never again will there be a flood that wipes out the entire world.