CUET Preparation Today
The atomic mass unit (1u) is correctly represented by: |
$1u=1.67 × 10^{-27} J/C^2$ $1u=931.5 MeV/C^2$ $1u=931.5 J/C^2$ $1u=9.31 MeV/C^2$ |
$1u=931.5 MeV/C^2$ |
The correct answer is Option (2) → $1u=931.5 MeV/C^2$ Energy equivalent of 1u is $931 MeV$ by - $E=mc^2$ [Special theory of relativity] $=(1.66×10^{-27})×(3.00×10^8m/s)^2$ $=1.494×10^{-10}J$ and, $E_{MeV}=\frac{1.494×10^{-10}}{1.602×10^{-13}T/MeV}$ $≃931.5MeV$ |
