If the speed of light is c, and the index of refraction of a material is n, what is the speed of light in the material?
A)c
B)c/n
C)nc
D)n
E)n/c

Name: If the speed of light is c, and the index of refraction of a material is n, what is the speed of light in the material? A)c B)c/n C)nc D)n E)n/c
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Question

Quizplus · Accepted Answer

The speed of light in a material is equal to the speed of light in a vacuum (which is c) divided by the index of refraction of the material (which is n), so the formula is v = c/n.

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