Question

Explain briefly the reason for the blue colour of the sky.

Answer 1

Sky appears blue because molecules in the air scatter blue light from the sun more than they scatter red light and thus blue light falls in the line of site or reaches our eyes than red. We always see the same colour of an object which colour it scatters or reflects when llight falls on it. Similarly when we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight.