# physics

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The refractive indices of materials A and B have a ratio of nA/nB = 1.38. The speed of light in material A is 1.25 108 m/s. What is the speed of light in material B?

• physics -

I bet the speed of light in B is faster by a factor of 1.38.

Isn't index of refraction inversely related to speed of light in the medium

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