Question

What is the speed of light in a medium with an index of refraction n=1.95?1.54x10 m/s1.05x108 m/s6.50x107m/s4.95x108 m/s

Answer 1

We are asked to determine the speed of light in a medium with an index of refraction of 1.95. To do that we will use the following formula:

`v=(c)/(n)`

Where:

`\begin{gathered} v=\text{ speed of light in the medium} \\ c=\text{ speed of light in vacuum} \\ n=\text{ index of refraction} \end{gathered}`

Now, we substitute the values:

`v=\frac{3*10^8\text{ m/s}}{1.95}`

Solving the operations:

`v=1.54*10^8\text{ m/s}`