Refractive index of light from permittivity

[Taylor_1989]

Homework Statement

Given that the relative magnetic permeability and relative electric permeability of water are respectively, $\mu_{rel}=1$ and $\epsilon=1.769$ calculate the following 6 parameters.

1. Index of refraction of water $n$

2. speed of electromagnetic waves in water $c$

3. Value of permittivity of water $\epsilon$

4. Value of permeability of water $\mu$

5. electrical susceptibility of water $X_{e}$

6. magnetic susceptibility of water $X_{m}$

Homework Equations

$c^2=\frac{c_0^2}{\epsilon _r\:\mu _r},\:where\:c_0^2=\frac{1}{\epsilon _0\:\mu _0}$

The Attempt at a Solution

[/B]
Normall I would put my working up but I have been looking at this question for well over an hour and can't really make a start, I originally through that looking at Maxwell equation for a light wave would help but that just showed me the equations above. I then through well $n=\frac{c}{v}=\frac{c_0}{c}=\sqrt{\mu _r\epsilon _r}$ but this gave me 1.1 so that was a no go, at that all I have, I just done know how to start this type of question off can some give a nudge in the right direction please. I am quite new to all this so, is it possible not to go too deep straight away, thanks in advance.

 

[TSny]

I then through well $n=\frac{c}{v}=\frac{c_0}{c}=\sqrt{\mu _r\epsilon _r}$ but this gave me 1.1 so that was a no go

How did you get 1.1? What values did you use for $\mu _r$ and $\epsilon _r$?

 

[Taylor_1989]

The values I used 1 and 1.769 as shown in the question

 

[TSny]

The values I used 1 and 1.769 as shown in the question

When I use these values, I don't get 1.1 for $n$.