MDCAT Physics MCQ #2849

A proton and a neutron combine to form a deuterium nucleus, releasing 2.2 MeV of energy. What is the mass defect?

MDCAT Physics MCQ #2849

  1. Question 1

    Q1. A proton and a neutron combine to form a deuterium nucleus, releasing 2.2 MeV of energy. What is the mass defect?

    • A) 0.0024 u
    • B) 0.024 u
    • C) 0.002 u
    • D) 0.24 u

    Answer: 0.0024 u

    Explanation: Mass defect = Energy released / 931 MeV/u = 2.2 MeV / 931 MeV/u = 0.0024 u. Option 'B' incorrectly divides by 93 instead of 931.