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What is a primary rainbow?

by aman in Science at 2017-04-17 15:54:32 got 1 Comments 14 Views
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aman comment on "What is a primary rainbow?"

The primary Rainbow has violet colour on the inner edge and the red colour on the outer edge of the rainbow. it is formed when the light from the sun after undergoing dispersion from the water droplets reaches the observer after suffering one internal reflection. It can be mathematically proved that an observer receives intense red light in a direction making an angle of 42 degree and intense violet light in a direction making an angle of 40 degree with the line joining the sun and the observer.