This form of scattering can be found as the low-Mie-parameter limit of Mie theory since it describes the scattering of light by spheres of radii much smaller than the light's wavelength.
The cross-section for this process is given by two thirds pi to the fifth times scattering center diameter to the sixth over incident wavelength to the fourth times the square of the quantity index of refraction squared minus one all over index of refraction squared plus two, close quantity. Einstein used this effect to quantitatively explain an effect that results from density fluctuations at second-order phase changes, critical opalescence. It is similar to Stokes scattering except that its de-excitation transition is back to the ground state; however, like both cases of Raman scattering, this form of scattering sees scatterer excited to a high virtual energy state. This form of scattering can be found as the low-Mie-parameter limit of Mie theory since it describes the scattering of light by spheres of radii much smaller than the light's wavelength. For ten points, name this form of scattering often seen in gasses.
The cross-section for this process is given by two thirds pi to the fifth times scattering center diameter to the sixth over incident wavelength to the fourth times the square of the quantity index of refraction squared minus one all over index of refraction squared plus two, close quantity.
{Rayleigh} scattering