If the speed of light in carbon disulfide and vacuum is X and Y respectively, then

  1. A. X<Y
  2. B. X>Y
  3. C. X\ge Y
  4. D. X=Y

Correct Answer: A. X<Y

Explanation

The speed of light is maximum in a vacuum. Therefore, the speed of light in any medium like carbon disulfide (X) will always be less than its speed in a vacuum (Y).

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