Question - Why Clouds are White? Answer :- Clouds are made of water droplets of different size. These different sized droplets are scattered in different colours for example , The tiniest droplets scatter more blue light than other colours .The droplets of size greater than the tiniest droplets scattered more green light and the largest droplets scattered more red light. As, all the colours are scattered by the droplets in the clouds , so the result light is white. hence , clouds appear white. White Clouds Question:- Why danger signals are of red colour? Answer:- When light falls on the signal , all colours are scattered more than that of red colour , so the red colour suffering least scattering remains confined around the signal , which in turn illuminates the signal significantly. Thus the danger signals can be seen from very far off distances. Moreover , among all colours ,Red colour or red light is scattered least by smoke...
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