Question

What is the speed of light in glass in m/s????

Answer 1

Answer:

Light travels at approximately 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 = 1.3; see Figure 1) and 200,000 kilometers per second in glass (refractive index of 1.5).

Answer 2

Explanation:

• 200,000 kilometers per second
• Light travels at approximately 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 = 1.3; see Figure 1) and 200,000 kilometers per second in glass (refractive index of 1.5).
• 122,000 miles/second
• In crown glass light travels at 122,000 miles/second.
• The speed of light in water is approximately 2.26×108 2.26 × 10 8 meters per second.
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