Question
What is scattering of light? On what factors does it depend?
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Answer
- The deflection of light by minute particles and molecules/ atoms in all directions is known as scattering of light.
- The amount of scattering (i.e., extent of deflection) of light depends on the frequency (colour) of light and the size of the particles responsible for scattering.
- $(1)$ Very fine particles scatter mainly blue light. Bigger particles scatter light of longer Wavelength.
- $(2)$ If the scattering particles are very large, the scattered light appears white as light of all wavelengths in the visible region is scattered.
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