Question

What Is the Speed Of light in glass ?​

Answer 1

Answer:

200,000 kilometers per second

300,000 kilometers per second in a vacuum, which has a refractive index of 1.0, but it slows down to 225,000 kilometers per second in water (refractive index of 1.3; see Figure 2) and 200,000 kilometers per second in glass (refractive index of 1.5).

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Answer 2

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The Speed Of light in glass is 200,000 kilometers per second.

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