All the constituent colours of sunlight do not have same rate of scattering.
Write the reason fòr this?

Answer

a) As the size of the particle increases the rate of scattering also increasing.
b) Water is taken in a beaker. Allow light from a torch to fall on the water from one side of the beaker. The light emerging from the beaker is focussed on a white screen. Sodium thiośulphate is dissolved in water in the beaker at the rate of 2 g per litre. Add one or two drops of hydrochloric acid to the water in the beaker. Observe the gradual change in the cỏlour of light in the solution and on the screen. Blue colour spread first-in the solution.and it becomes real at last.
c) If the size of the particle is grater than the wave length of light: