Question

2. Speed of light in glass is​

Answer 1

Answer ⤵️

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 of 1.3; see Figure 2) and 200,000 kilometers per second in glass (refractive index of 1.5).

Answer 2

Answer:

$\huge\underbrace\mathcal\pink{anSwer}$

speed of light in common glass is 2*10^8 m/s.

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