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The difference between a nucleus and its constituents in mass is the:
AMass decrease
BMass decrement
CMass defect
DMass deficit
Answer & Solution
Correct answer: C. Mass defect
1. The nucleus weighs less than its parts.
2. The shortfall carries the binding energy.
3. It is the mass defect.
_Source: NCERT Class 12 Physics, Ch 13 'Nuclei'_
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