Question

How does the intensity of scattered light depend on the wavelength of incident light ? State the condition when its dependence hold.

Answer 1

Intensity of scattered light is inversely proportional to the fourth power of wavelength of light.

$I\propto \frac{1}{{\lambda }^4}$
This is the Rayleigh scattering which is valid when size of the particle is less than the wavelength of light.