AP Physics 2
13.3 Refraction
A light ray in a optics experiment enters a block of clear plastic. The speed of light inside the plastic block is measured to be \(2.0 \times 10^8 \text{ m/s}\). Given that the speed of light in a vacuum is \(3.0 \times 10^8 \text{ m/s}\), what is the index of refraction of the plastic block?
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