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Can you explain the answer of this question below:
Light travels faster in substance X as compared to substance Y, then refractive index is greater for
  • A:
    Can’t tell with the information provided
  • B:
    Substance-Y
  • C:
    Refractive index for both is same
  • D:
    Substance-X
The answer is b.
Most Upvoted Answer
Can you explain the answer of this question below:Light travels faster...
As the refractive index increases, the velocity of light decreases.
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Community Answer
Can you explain the answer of this question below:Light travels faster...
Explanation:

Given Information:
- Light travels faster in substance X than in substance Y.

Understanding Refractive Index:
- Refractive index is a measure of how much light is bent or slowed down when passing through a substance.

Relation between Speed of Light and Refractive Index:
- The speed of light is inversely proportional to the refractive index of a substance.
- If light travels faster in substance X compared to substance Y, it means that substance X has a lower refractive index than substance Y.

Conclusion:
- Therefore, if light travels faster in substance X than in substance Y, the refractive index is greater for substance Y (option B).
Therefore, the correct answer is Option B: Substance-Y.
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