Physics
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Question

The  velocity of light in glass whose refractive index with respect to air is 1.5 is 2 cross times 10 to the power of 0 m divided by s . In a certain li liquid, the velocity of light is found to be 2.5 cross times 10 to the power of 8 m divided by s What is the refractive index of the liquid with respect to air?

  1. 1.44
  2. 0.80 to the power of 9
  3. 1.20
  4. 0.64

The correct answer is: 1.20

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