Question

Give an example of natural spectrum ( formation of rainbow ). explain the formation of a rainbow in sky with a neat labeled diagram​

Answer 1

Answer:

Explanation:

The rainbow is formed due to dispersion of sunlight through water droplets. The water droplets act as a small prism through which the sunlight will  enter and it refracts and disperses and then it gets reflected which creates a rainbow in the sky which is seen by the eye.

Answer 2

Rainbow may be a well-known physical phenomenon that results in the formation of an excellent sight of a coloured arc within the sky.

• This spectrum is created because of the method of refraction of daylight from a driblet of rain.
• Rainbows are shaped as a results of the dispersion of white lightweight that splits into seven colors once passing through a droplet.
• The seven primary colors of the rainbow are organized during a band one higher than the opposite during a horizontal manner.
• Once all the colors of the rainbow combine along, it seems to as white light
• As an example, daylight seems white once daylight hits a droplet of water, some a part of the sunshine is mirrored with completely different wavelengths comes along to comprise the spectrum.
• All the colors are mirrored at varied angles. Therefore, a spectrum is distributed so as to supply a rainbow.

• Formation of a Rainbow:

• Rainbows are shaped once daylight, a white lightweight, gets scattered by a driblet of water like fog or driblet by a method called refraction.
• Once the sunshine from the sun changes its direction because it passes from a denser medium (denser than air) sort of a droplet. The refracted light then enters the droplet and is mirrored from the rear of its surface and once more undergoes refraction because it leaves the drop to achieve our eyes.
• Our daylight is created of sunshine of varied wavelengths and colors that travel at varied speeds once they go through a medium. Hence, the white lightweight splits into completely different colors.
• The colors with longer wavelengths are towards the red finish of the spectrum whereas the shorter wavelengths have a blue or violet  
• Once the daylight passes through the droplet at angles that are about capable 2 degrees, the color gets split from red to violet. The colors do appear to combine and merge and so would possibly seem as a blur.
• Every rainbow is exclusive in its facet as every angle of scattering of sunshine is completely different.

• Conditions for the Visibility of Rainbow:

• Water droplets should be gift within the atmosphere round the observer like the presence of raindrops or fog.

• The person ought to be standing with their backs towards the sun.

• The arc of the rainbow are going to be a lot of discernible, the lower the sun is positioned within the sky. It ought to be placed at associate degree angle but forty two degrees within the sky.

#SPJ3