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Light – Reflection and Refraction — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceLight – Reflection and Refraction1 Mark
Question
Does refractive index change with colour of light?
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Answer

Yes, refractive index of a medium depends on the colour and wavelength of light! This is called dispersion and causes prisms and rainbows to divide white light into its constituent spectral colors. ... For visible light normal dispersion means that the refractive index is higher for blue light than for red.

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