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If the speed of light in vacuum is 3 x 10^8 m/s, what is its speed in glass (n = 1.5)?

Practice Questions

1 question
Q1
If the speed of light in vacuum is 3 x 10^8 m/s, what is its speed in glass (n = 1.5)?
  1. 2 x 10^8 m/s
  2. 2.5 x 10^8 m/s
  3. 3 x 10^8 m/s
  4. 1.5 x 10^8 m/s

Questions & Step-by-step Solutions

1 item
Q
Q: If the speed of light in vacuum is 3 x 10^8 m/s, what is its speed in glass (n = 1.5)?
Solution: The speed of light in a medium is given by v = c/n. Therefore, v = (3 x 10^8 m/s) / 1.5 = 2 x 10^8 m/s.
Steps: 0

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