$\definecolor{red}{RGB}{255,0,0}$$\definecolor{black}{RGB}{0,0,0}$
  1. $\lambda_0$
  2. $\lambda_0$
  3. $\lambda_0$
    • $$\color{blue}{\rightarrow}\color{black}\;$$$$\lambda_0 = \lambda \cdot n$$
  1. $\lambda$
  2. $\lambda$
  3. $\lambda$
    • $$\color{blue}{\rightarrow}\color{black}\;$$$$\lambda = \frac{\lambda_0}{n} $$
  1. $v$
  2. $v$
  3. $v$
    • $$\color{blue}{\rightarrow}\color{black}\;$$$$v = \frac{c}{n} $$
  1. $n$
  2. $n$
  3. $n$
    • $$\color{blue}{\rightarrow}\color{black}\;$$$$n = \frac{\lambda}{\lambda_0} $$
    • $$\color{blue}{\rightarrow}\color{black}\;$$$$n = \frac{c}{v} $$

Nombres sous la forme 1/2 ou 0.5 ou 1.5E3 sont acceptés: