MCQ
The rest mass energy of an electron is:
Physics
A 0.511 MeV
B 5.11 MeV
C 0.000511 MeV
D 51.1 MeV
Explanation

m₀c² = 9.109 × 10⁻³¹ × (3 × 10⁸)² / (1.6 × 10⁻¹³) ≈ 0.511 MeV