Question

What is the speed of light for blue light (480 nm) in diamond (n=2.419)?

What is the speed of light for blue light (480 nm) in diamond (n=2.419)?

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Answer #1

Let the speed for blue light in diamond is v.

We know the speed of blue light in air is the speed of light c=3108 m/s.

The refractive index for diamond respect to air is n=2.419.

We know

  

  

   The speed of the blue light in the diamond is 124018189.3 m/s or 1.240181893108 m/s.

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