Particle size affects EM radiation scattering because the size of particles determines how they interact with the incoming radiation. When the particle size is similar to the wavelength of the radiation, the particles will interact with the radiation differently than when the particle size is much smaller or larger than the wavelength.
The amount of EM radiation scattered is affected by particle size because smaller particles scatter more radiation than larger particles. This is because smaller particles have a larger surface area relative to their volume, allowing them to interact with more radiation.
Yes, the shape of particles can also affect EM radiation scattering. Different shapes have different surface areas and therefore different abilities to interact with radiation. For example, a sphere will scatter radiation differently than a rod-shaped particle of the same size.
The composition of particles can also impact EM radiation scattering. Different materials have different refractive indices, which determine how much light is scattered when it passes through the material. Therefore, the composition of particles can affect how much radiation is scattered.
Understanding how particle size affects EM radiation scattering is important in many applications, such as in environmental studies, where it can help determine the concentration and composition of particles in the air. It is also relevant in industries such as agriculture, where knowledge of particle size can help optimize the use of pesticides and fertilizers. In addition, understanding EM radiation scattering can aid in the development of new materials for technologies such as solar cells and electronic devices.