Physics · PYQ NEET UG 2026

A photon and an electron, each of \( 20\text{ eV} \) energy, move in free space. The ratio of linear momentum of electron \( p_e \) to that of photon \( p_{\text{ph}} \) (\( \frac{p_e}{p_{\text{ph}}} \)) is: \n(Take speed of light \( = 3 \times 10^8\text{ ms}^{-1} \), charge of electron \( = -1.6 \times 10^{-19}\text{ C} \) and mass of electron \( = 9 \times 10^{-31}\text{ kg} \))

1. A
   \( \frac{2}{450} \)
2. B
   \( \frac{1}{250} \)
3. C
   225
4. D
   275