Question

What is colour of sun at sunset and sunrise, why?

Answer 1

Sunlight consists of seven colours. Of these, red has the maximum wavelength. During sunrise and sunset, the rays have to travel a larger part of the atmosphere because they are very close to the horizon. 

Answer 2

colour of sun at sunset and sunrise is red because of atmospheric refraction in atmosphere by which we see sun as in red colour.



the sun's white light consists of seven colours and red colour scattered most that's why we can we see sunrise at sunset or sunrise