Refractive Index

#Physics

$n=\frac{c}{v}$

• Index of refraction

$\displaystyle n\equiv \sqrt{ \frac{\varepsilon \mu}{{\varepsilon}{0}{\mu}{0}} }$

• $\displaystyle \varepsilon$ is the permittivity of the material
• $\displaystyle \mu$ is the Permeability of the material