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PART - 3 CH - 9 Light-Reflection and Eefraction — Science STD 10 — Question

Gujarat BoardEnglish MediumSTD 10SciencePART - 3 CH - 9 Light-Reflection and Eefraction1 Mark
Question
What do you mean by refractive index of a medium?
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Answer

A ray of light that travels obliquely from one transparent medium into another will change its direction in the second medium.
→The extent of the change in direction that takes place in a given pair of media is expressed in term of the refractive index, the constant
appearing in the equation $\frac{\sin t}{\sin r}$= constant.

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