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Atomic and Nuclear Physics — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsAtomic and Nuclear Physics1 Mark
MCQ
The mass of an $\alpha-$particle is
  • ✓
    Less than the sum of masses of two protons and two neutrons
  • B
    Equal to mass of four protons
  • C
    Equal to mass of four neutrons
  • D
    Equal to sum of masses of two protons and two neutrons
✓

Answer

Correct option: A.
Less than the sum of masses of two protons and two neutrons
Less than the sum of masses of two protons and two neutrons

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