The refractive index of the medium is different for different colour. Why?
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Explanation:
The refractive index varies with wavelength linearly because different wavelengths interfere to different extents with the atoms of the medium. It is important to use monochromatic light to prevent dispersion of light into different colours. The chosen wavelength should not be absorbed by the medium.
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Answer:
The refractive index varies with wavelength linearly because different wavelengths interfere to different extents with the atoms of the medium. It is important to use monochromatic light to prevent dispersion of light into different colours. The chosen wavelength should not be absorbed by the medium.
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