why clouds appear white

Asked by  | 24th Mar, 2008, 03:35: PM

Expert Answer:

The clouds are at much lower height. They are seen due to scattering of light due to lower parts of earth's atmosphere, which contains large dust particles, water droplets, ice particles etc. As the size of scatterer is much greater than the wavelength of light, Rayleigh scattering is not valid. Rather, all wavelengths are scattered nearly equally. tHerefore, all equally scattered colours merge to give us the sensation of white. Hence, clouds generally appear white. 

Rgds

Topper team

Answered by  | 24th Mar, 2008, 07:26: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.