If the particle no longer acts as a Rayleigh scatterer becau

If the particle no longer acts as a Rayleigh scatterer because it is too large, would you expect the value of the exponent for wavelength to be smaller or larger than four? Why? Consider the role of interference.

Solution

In rayleigh scattering we use tyndall effect .In tyndall effect require that the particle to be about the same size as the wavelength,and rayleigh requires particles be smaller.

Rayleigh scattering is restricted to particles smaller than the lights wavelength. If only air was present or very fine dust the beam would still scatter, but to a significantly lower degree, so much so that it would be almost invisible.

The role of interference to be in which two waves to superpose to form a resultant wave or greater ,lower or the same amplitude.