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Light – Reflection and Refraction — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceLight – Reflection and Refraction1 Mark
Question
Define ‘refractive index of a transparent medium.’ What is its unit? Which has a higher refractive index, glass or water?
✓

Answer

Refractive index of a transparent medium is the ratio of speed of light in vaccum to speed of light in that medium. The refractive index has no unit as it is the ratio of two similar quantities. Glass has more refractive index.

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