\(\mathrm{v}=\mathrm{u}+\mathrm{at}=\left(\frac{\mathrm{eE}}{\mathrm{m}}\right) \mathrm{t}\)
\(\lambda=\frac{\mathrm{h}}{\mathrm{mv}}\)
\(\frac{\mathrm{d} \lambda}{\mathrm{dt}}=\frac{-(\mathrm{hm}) \cdot \frac{\mathrm{dv}}{\mathrm{dt}}}{(\mathrm{mv})^{2}}\)\(=-\frac{\mathrm{ah}}{\mathrm{mv}^{2}}=-\frac{\mathrm{h}}{| \mathrm{et}^{2}}\)
(નાઇટ્રોજન અણુનું દળ :$4.64 \times 10^{-26}\, kg ,$
બોલ્ટ્ઝ્મેન અચળાંક : $1.38 \times 10^{-23}\, J / K ,$
પ્લાંક અચળાંક : $\left.6.63 \times 10^{-34}\, J . s \right)$