A) A medium with larger refractive index is optically denser than a medium with smaller refractive index.
B) The speed of light is less in a rarer medium than a denser medium.
C) Refraction is due to the change in speed of light as it enters from one medium to another.
D) The absolute refractive index of a medium is simply called its refractive index.
Correct Answer: B
Solution :
The speed of light is higher in a rarer medium than in a denser medium.
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