Question

A photon and electron have same de-Broglie wavelength. Give that is the speed of electron and c is the velocity of light. are the kinetic energy of electron and photon respectively. are the momentum of electron and photon respectively. Then which of the following relation is correct?

• A. $\frac{E_e}{E_p}=\frac{v}{2c}$
• B. $\frac{E_e}{E_p}=\frac{2c}{v}$
• C. $\frac{P_e}{P_h}=\frac{c}{2v}$
• D. $\frac{P_e}{P_h}=\frac{2c}{v}$

Answer 1

The correct option is A

$\frac{E_e}{E_p}=\frac{v}{2c}$