- (a) 3.88\times10^{-12} m
- (b) 1.23\times10^{-8} m
- (c) 1.23\times10^{-10} m
- (d) 6.63\times10^{-34} m
\lambda=\dfrac{h}{\sqrt{2meV}}; ইলেকট্রনে সংক্ষেপে \lambda(\mathrm{\AA})=\dfrac{12.27}{\sqrt{V}}=1.227 Å =1.23\times10^{-10} m।
(c) 1.23\times10^{-10} m