1 amu (atomic mass unit) mass is equal to energy of

Question

1 amu (atomic mass unit) mass is equal to energy of (A) 931 textkeV (B) 93.1 texteV (C) 931 textMeV (D) 9.31 textMeV

Tardigrade Admin · Accepted Answer

1amu=1.66× 10- 27kg Equivalent energy can be calculated by using mass-energy equivalence equation E=mc2 E=1.66× 10- 27× (3 × 108)2J 1MeV=106× 1.6× 10- 19J Using above equations we can get, E=931MeV

Q. $1$ $am u$ (atomic mass unit) mass is equal to energy of

$931 keV$

$93.1 eV$

$931 MeV$

$9.31 MeV$

$1 am u = 1.66 \times 1 0^{- 27} k g$
Equivalent energy can be calculated by using mass-energy equivalence equation
$E = m c^{2}$
$E = 1.66 \times 1 0^{- 27} \times (3 \times 1 0^{8})^{2} J$
$1 M e V = 1 0^{6} \times 1.6 \times 1 0^{- 19} J$
Using above equations we can get,
$E = 931 M e V$

Q. 1 amu (atomic mass unit) mass is equal to energy of

931keV

93.1eV

931MeV

9.31MeV