A moving electron has $5 \times 10^{-25}$ joules of kinetic energy. What is the de-Brogile wavelength ?

Question

$\begin{array}{1 1} (a)\;6.95 \times 10^{-7}\;m \\ (b)\;6.95 \times 10^{-7}\;m \\ (c)\;5.95 \times 10^{-7}\;m \\ (d)\;9.95 \times 10^{-7}\;m \end{array}$