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What do you mean by the term dispersion ?
What do you mean by the term dispersion ?
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Solution
Dispersion is when a material has a different Refractive index for light of different frequencies, which then implies different speeds. It's called dispersion because if you make a Prism out of the material, the different speeds imply different amounts of bending at the surfaces so that the different frequencies are spread out into a rainbow:
Dispersion is when a material has a different Refractive index for light of different frequencies, which then implies different speeds. It's called dispersion because if you make a Prism out of the material, the different speeds imply different amounts of bending at the surfaces so that the different frequencies are spread out into a rainbow:
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