Question
The speed of light in a new type of plastic is measured at$2.11 \times 10^{8} \mathrm{~m} / \mathrm{s}$. What is its refractive index?
Step 1
The refractive index (n) of a medium is given by the ratio of the speed of light in vacuum (c) to the speed of light in the medium (v). This can be written as: \[ n = \frac{c}{v} \] Show more…
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