Atomic mass unit u corresponds to energy:
A1 J
B931.5 MeV (= u × c²)
C100 MeV
D1 eV
Answer & Solution
Correct answer: B. 931.5 MeV (= u × c²)
1 u = 1/12 mass of ¹²C atom = 1.66 × 10⁻²⁷ kg. By E = mc²: 1 u × c² = 931.5 MeV. So mass defects in nuclear reactions convert to MeV energies.
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