m_{m a x} = \frac{2 h n}{λ} = \frac{2 \times 10^{- 4} \times 1, 5}{6, 438 \cdot 10^{- 7}} = 466

${m_\mathrm{max}=\frac{2hn}{\lambda}=\frac{2 \times 10^{-4} \times 1,5}{6,438 \cdot 10^{-7}}=466}$

Error