Question

WHAT IS REFRACTIVE INDEX ?? EXPLAIN REFRACTION

Answer 1

Answer:

Refractive Index (Index of Refraction) is a value calculated from the ratio of the speed of light in a vacuum to that in a second medium of greater density. The refractive index variable is most commonly symbolized by the letter n or n' in descriptive text and mathematical equations.

Explanation:

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Answer 2

Answer:

:the ratio of the speed of radiation (such as light ) in one medium ( such as air ,glass or a vacum) to that in another medium is referred to refractive index.

Explanation:

in physics the refraction is a change in direction of a wave passing from one medium to another or from a gradual change in the medium.The refraction of light is the most commonly observed phenomenon but other waves such as sound waves and water waves also experience refraction .

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