Momentum of photon and electron

2026 Re-NEET 1 question

1. A photon and an electron, each of 20 eV energy, move in free space. The ratio of linear momentum of electron $p_e$ to that of photon $p_{Ph}$, $\frac{p_e}{p_{Ph}}$ is: [Take speed of light = $3\times10^8$ ms$^{-1}$, charge of electron = $-1.6\times10^{-19}$ C and mass of electron = $9\times10^{-31}$ kg]