Light of wavelength 6 picometres enters a glass slab of refractive index 1.5 .Calculate the speed of light in glass.(Can you please answer the question a little bit early, I have a test tomorrow)

Asked by Vaibhav Tomar | 3rd Dec, 2013, 08:43: PM

Expert Answer:

Refrective index μ = speed of light in vaccume/speed of light in medium
μ = c/v
v = c/μ
  = 3 x 108 / 1.5
  = 2 x 108 m/s
Hence, speed of light in glass = 2 x 108 m/s

Answered by Komal Parmar | 4th Dec, 2013, 11:55: AM

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