This lesson covers the concept of scattering, which includes three processes: reflection, refraction, and diffraction. It explains how these processes bend the ray of light and how they play a role in defining the scattering coefficient. The lesson also introduces the scattering cross-section and scattering efficiency, which are used to measure the scattering. It further discusses the influence of particle volume fraction on scattering and the concept of scattering efficiency factors. The lesson also explains the importance of the asymmetry parameter in scattering and the role of the single scattering albedo. Towards the end, it discusses the validity of the single scattering approach and the need for a Monte Carlo scheme for problems involving multiple scattering and non-isotropic scattering.

- Scattering includes three processes: reflection, refraction, and diffraction.
- The scattering coefficient, scattering cross-section, and scattering efficiency are used to measure scattering.
- The particle volume fraction influences scattering.
- Scattering efficiency factors include absorption efficiency, scattering efficiency, and extinction efficiency.
- The asymmetry parameter is important in scattering as it indicates how asymmetric the scattering is with respect to forward or backward scattering.
- The single scattering albedo plays a significant role in scattering.
- For problems involving multiple scattering and non-isotropic scattering, a Monte Carlo scheme is required.

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