Fun & Easy Science for Kids
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Visible Spectrum Video for Kids

 

                                          Visible Spectrum Facts

Light can be defined as an energy which moves in small particles. These small particles are called photons. These waves are much faster than sound waves. They travel at a speed of 186,000 miles per second. It can travel through the vacuum of space. Visible spectrum can be defined as a particular portion of electromagnetic spectrum that is visible to human eye.

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Fast Facts: –

  • A wavelength can be defined as the distance between the crests of two waves.
  • A human eye cans see a wavelength which ranges between 390 to 700 nm.
  • Wavelength of a light varies by its type.
  • Our eyes recognize each wavelength by a different colour. Red has the longest wavelength and violet has the shortest wavelength.
  • Cones in human eyes works as a receiver for these small visible light waves.
  • Some other creatures can see parts of the spectrum that are not visible to us. For example, some insects can see UV light.
  • Red yellow and blue are known as primary colours and are used to create all the colours that we see. Orange, purple and green are called secondary colours.
  • Visible spectrum has 7 colours, red, orange, yellow, green, blue, indigo and violet. They are called elementary colours.

 

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