What are different colors of Sunlight?

We know that Sunlight contains of 7 Colors

Violet, Indigo, Blue, Green, Yellow, Orange and Red

All these combine to form white sunlight

White light is a mixture all these colors.jpg

 


Which color of Sunlight is scattered more and Why?

We know that light is a wave

Blue Color of Sunlight is scattered most because it has a shorter wavelength

Red Color is scattered least because it as a longer wavelength


What is color of Scattered Light?

It depends upon whether the light reflects from large particles or small particles

Example

  • Particles of Dust and Water are Larger in Size
    Hence when sunlight falls on them, whole of light gets reflected (or scattered) in different directions
    Hence scattered light appears to be white in color
    Example - Cloud appears white because it scatters all colors of light
    Cloud appears white - Teachoo.gif
  • Air Molecules are Smaller in Size
    Hence when sunlight falls on them, only blue color of light gets scattered as it has shorter wavelength
    Hence, Scattered light appears to be blue in color

Why is color of Sky Blue?

We know that sunlight contains different colors like

Violet, Indigo, Blue, Green, Yellow, Orange and Red

The blue color of sunlight has much less wavelength compared to all other colors

When sunlight falls on molecules of air present in atmosphere

They are able to scatter light of shorter wavelength of blue much more than colors of other wavelengths like red

Hence, scattered light is of blue color and hence we see color of sky as blue

Why is color of sky blue - Teachoo.jpg

  1. Class 10
  2. Chapter 11 Class 10 - Human Eye and Colourful World

About the Author

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.