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23 January, 13:59

In which of the following materials is the velocity of light greatest?

A. Air

B. Water

C. Fused quartz

D. Crown glass

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Answers (2)
  1. 23 January, 14:12
    0
    The velocity of light is by far the greatest in air. There is nothing in air to stop or impede the movement of light in air. When light travels in air it will not stop unless running into clouds, smoke, smoke, droplets, or impurities. Any other substance is harder for light to travel through.
  2. 23 January, 16:30
    0
    A is the right answer
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