What is refraction and how does it produces the colours and shape of a rainbow?
- Rainbows are beautiful tricks of the light.
- Rainbows are caused when light is reflected and refracted by water.
- Water can be in the form of rain, mist, spray or dew.
- The light bends and is split according to its different wavelengths to produce a spectrum.
Everyone knows the colours of the rainbow.
But how is this beautiful light trick formed?
There are two conditions necessary to see a rainbow.
The Sun needs to be shining at a low angle.
And it needs to be reflected by water, either from rain, mist, spray or dew.
Rainbow formation requires:
Sun shining at low ...
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