Question

definition of refractive index and refraction of light
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Answer 1

*⃣❇❇❇❇❇ANSWER.. ❇❇❇❇❇❇❇*⃣

✔✔THE RATIO OF SINE OF ANGLE OF INCIDENCE TO THE RATIO OF SINE OF ANGLE OF REFRACTION IS CALLED REFRACTIVE INDEX. ♣♣♣

✔✔THE CHANGE IN THE DIRECTION OF LIGHT WHEN IT PASSES FROM ONE TRANSPARENT MEDIUM TO ANOTHER IS CALLED REFRACTION OF LIGHT. ♣♣♣


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Answer 2

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1) Refractive index :-
the ratio of the velocity of light in a vacuum to its velocity in a specified medium.

2) Refraction of light:- Refraction is the bending of a wave when it enters a medium where its speed is different. The refraction of light when it passes from a fast medium to a slow medium bends the light ray toward the normal to the boundary between the two media.

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