1.32 x \(10^{-6}\)m
2.98 x \(10^{-6}\)m
3.32 x \(10^{-6}\)m
6.82 x \(10^{-6}\)m
8.01 x \(10^{-6}\)m
Correct answer is A
\(E=\lambda v=\frac{hc}{\lambda}\Rightarrow\lambda=\frac{hc}{E}={6.6 \times10^{-34}\times3\times10^8}{1.5\times10^{-19}}\\=1.32\times10^{-6}\)