- #1
Ahsan Khan
- 270
- 5
Hi all
We know white sun light consist of seven colours and that when it passes through the atmosphere then due atmosphere it scatters. Amount of scattering is more for shorter wavelengths( maximum for voilet). Due to multiple scattering the effect of voilet scattering washes away and blue scattering dominates at large distance.
The atmospheric particles absorbing blue light radiate it ( after some time) in all,directions( this is what scattering is, right?). Text says this scattered blue light reach our eyes and therefore sky appear blue to us(when we look up or at far open distance).
My question is that if particles ( gas molecules) scatters blue light, why don't we see every thing(empty space between my room window and the tree in the lawn) blue, ( after all it is atmosphere only between my window and tree) rather the atmosphere in between appear some what pale yellow. Why only atmosphere of above height(I.e. Sky) appear blue.
Regards
We know white sun light consist of seven colours and that when it passes through the atmosphere then due atmosphere it scatters. Amount of scattering is more for shorter wavelengths( maximum for voilet). Due to multiple scattering the effect of voilet scattering washes away and blue scattering dominates at large distance.
The atmospheric particles absorbing blue light radiate it ( after some time) in all,directions( this is what scattering is, right?). Text says this scattered blue light reach our eyes and therefore sky appear blue to us(when we look up or at far open distance).
My question is that if particles ( gas molecules) scatters blue light, why don't we see every thing(empty space between my room window and the tree in the lawn) blue, ( after all it is atmosphere only between my window and tree) rather the atmosphere in between appear some what pale yellow. Why only atmosphere of above height(I.e. Sky) appear blue.
Regards
Last edited: