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the index of refraction of ethanol is 1.37 calculate the speed of light in ethanol

Sagot :

Answer:

2.19 x 10⁸ m/s

Explanation:

The index of refraction n and the speed of light in ethanol v are related by the following equation

[tex]n=\frac{c}{v}[/tex]

Where c is the speed of light in a vacuum. Replacing n = 1.37 and c = 3 x 10⁸ m/s, we get:

[tex]\begin{gathered} v=\frac{c}{n} \\ \\ v=\frac{3\times10^8\text{ m/s}}{1.37} \\ \\ v=2.19\times10^8\text{ m/s} \end{gathered}[/tex]

Therefore, the speed of light in ethanol is 2.19 x 10⁸ m/s

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