NEET Physics Mass-Energy Relation MCQ Question
Consider a diagram showing a nucleus composed of Z protons and A-Z neutrons. The diagram includes a label indicating the mass defect (ΔM) of the nucleus. Which of the following expressions correctly represents the mass defect in terms of the individual masses of its constituents?
ΔM = (Zm_p + (A-Z)m_n) - M
ΔM = M - (Zm_p + (A-Z)m_n)
ΔM = (Zm_p + (A-Z)m_n) / M
ΔM = M + (Zm_p + (A-Z)m_n)
Correct Answer
Detailed Explanation
The mass defect ΔM is defined as the difference between the sum of the individual masses of the protons and neutrons and the actual nuclear mass, as stated in the NCERT text.
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