The de- Broglie wave length of a photon is twice the de- Broglie wave length of an electron. The speed of the electron is $v_e = \large\frac{c}{100}$ . Then

Question

$\begin{array}{1 1} \large\frac{E_e}{E_p}=10^{-4} \\ \large\frac{E_e}{E_p}=10^{-2} \\ \large\frac{p_e}{m_ec}=10^{-2} \\ \large\frac{P_e}{m_ec}=10^{-4} \end{array}$