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What Is the Speed of Light in a Material That $\times$

Question 70

Multiple Choice

What is the speed of light in a material that has an index of refraction of 2.0?

A) 6.0 $\times$ 10⁸ m/s
B) 1.5 $\times$ 10⁸ m/s
C) 2.0 $\times$ 10⁸ m/s
D) 5.0 $\times$ 10⁸ m/s
E) No such index can exist.

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