can any1 explain the dynamics of rainbows.?

Answer 1

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. A double rainbow includes a second, fainter, arc with colours in the opposite order, that is, with violet on the outside and red 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, indigo and violet.






Scientific explanation
The rainbow effect can be observed whenever there are water drops in the air and sunlight shining from behind the observer at a low altitude or angle. The most spectacular rainbow displays when half of the sky is still dark with draining clouds and the observer is at a spot with clear sky overhead. The rainbow effect is also commonly seen near waterfalls or fountains. Rainbow fringes can sometimes be seen at the edges of backlit clouds and as vertical bands in distant rain or virga. The effect can also be artificially created by dispersing water droplets into the air during a sunny day.

In a very few cases, a moonbow, or night-time rainbow, can be seen on strongly moonlit nights. As human visual perception for colour in low light is poor, moonbows are most often perceived to be white.


Rainbows may also appear in the spray of a water fountainThe rainbow's appearance is caused by dispersion of sunlight as it is refracted by (approximately spherical) raindrops. The light is first refracted as it enters the surface of the raindrop, reflected off the back of the drop, and again refracted as it leaves the drop. The overall effect is that the incoming light is reflected back over a wide range of angles, with the most intense light at an angle of about 40°–42°. This angle is independent of the size of the drop, but does depend on its refractive index. As seawater has a higher refractive index than rain water, the radius of a 'rain'bow in a sea spray is smaller than a true rainbow. This is visible to the naked eye by a misalignment of these bows [1].

Since the water is dispersive, the amount that the sunlight is bent depends upon the wavelength, and hence colour, of the light's constituent parts. Blue light is refracted at a greater angle than red light, but because the area of the back of the droplet has a focal point inside the droplet, the spectrum crosses itself, and therefore the red light appears higher in the sky, and forms the outer colour of the rainbow. Contrary to popular belief, the light at the back of the raindrop does not undergo total internal reflection; however, light that emerges from the back of the raindrop does not create a rainbow between the observer and the Sun. The spectra emitted from the back of the raindrop do not have a maximum of intensity, as the other visible rainbows do, and thus the colours blend together and do not form a rainbow.


A raindrop has been placed inside a half sphere so that the scattered light can be seen. People seeing this one raindrop from different directions would perceive it as either red, yellow, green, blue or violet (or colourless).
Light rays enter a raindrop from one direction (typically a straight line from the Sun), reflect off the back of the raindrop, and fan out as they leave the raindrop. The light leaving the rainbow is spread over a wide angle, with a maximum intensity of 40.6°–42°.
White light separates into different colours (wavelengths) on entering the raindrop because red light is refracted by a lesser angle than blue light. On leaving the raindrop, the red rays have turned through a smaller angle than the blue rays, producing a rainbow.


Some rainbows appear to be exceptionally close. This one is formed by a waterfall and is less than 20 feet away from the camera.A rainbow does not actually exist at a location in the sky, but rather is an optical phenomenon whose apparent position depends on the observer's location. All raindrops refract and reflect the sunlight in the same way, but only the light from some raindrops reaches the observer's eye. These raindrops are perceived to constitute the rainbow by that observer. The position of a rainbow in the sky is always in the opposite direction of the Sun with respect to the observer, and the interior is always slightly brighter than the exterior. The bow is centred on the shadow of the observer's head, or more exactly at the antisolar point (which is below the horizon during the daytime), appearing at an angle of approximately 40°–42° to the line between the observer's head and its shadow. As a result, if the Sun is higher than 42°, then the rainbow is below the horizon and cannot be seen as there are usually not enough raindrops between the horizon (that is: eye height) and the ground, to contribute. One exception is when the observer is at the top of a mountain or a similar vantage point, for example an aeroplane (see below). Another exception occurs when the rainbow is produced by a garden sprinkler. In this case to get sufficient drops they must be very small.


A portion of a 360 degree rainbow, seen from an airplane.It is difficult to photograph the complete arc of a rainbow, which would require an angle of view of 84°. For a 35 mm camera, a lens with a focal length of 19 mm or less would be required, whilst most photographers are only likely to have a 28 mm wide-angle lens. From an aeroplane, one has the opportunity to see the whole circle of the rainbow, with the plane's shadow in the centre. This phenomenon can be confused with the glory, but a glory is usually much smaller, covering only 5°–20°, as opposed to over 80° for a full circle rainbow.

Answer 2

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.

One beautiful thing to look out for if ever you're flying. On the ground, you only see half the rainbow - at altitude, it's a perfect circle.

Answer 3

A rainbow is caused by the refraction of light( Note refraction NOT reflection)

When light is reflected in a mirror it simply bounces back to the object.

When light is refracted it is 'bent' which breaks it into its constituent parts (the colours of the rainbow)

This refracted light when viewed is dependent on the position of the viewer. When the viewer move towards the rainbow the perception of the refraction moves at the same pace, therefore you can never 'catch a rainbow'

Answer 4

A rainbow occurs when the white light of the sun undergo light DISPERSION when passing through the droplets of rain.

This is mainly based upon the fact that the components of white light has different frequencies eg.Violet has a higher frequency but lower speed than red. Violet rays are therefore more deviated than red rays.

Answer 5

Hebrews 6:a million,2 says:as a result, now that we've left the known doctrine with regard to the Christ, enable us to press directly to adulthood, no longer laying a commencing place returned, somewhat, repentance from ineffective works, and faith in direction of God,  the coaching on baptisms and the laying on of the palms, the resurrection of the ineffective and eternal judgment. between the failings that Paul mentions as area of the very commencing place of Christian ideals is the Resurrection of the ineffective. evaluate this question: Why might persons who have been nonetheless alive must be resurrected? If their souls on no account died yet surpassed directly to existence in heaven or hell, the place might the resurrection are available? because of the fact the resurrection is a known coaching all Christians ought to have a sparkling information of it. particular the scriptures you cite of course state that there will be a ressurection. that's a known coaching of the real christian faith.

Answer 6

A rainbow is the separation of light wave frequencies visible to the human eye, can be caused by a prisim or by light refracting through droplets of water (rain)

Answer 7

Jeffrie,Bungle, Zippy, George, Rod, Jane & Freddy !!!

I wouldnt call them dynamic but RJ&F had some good Drum and Base Folky rifts !!

Hope i could be of some help

Answer 8

very pretty

Answer 9

not really