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Question: Answered & Verified by Expert
If \( M_{O} \) is the mass of an oxygen isotope \( { }_{8} \mathrm{O}^{17}, M_{\mathrm{P}} \) and \( M_{\mathrm{N}} \) are the masses of a proton and a neutron respectively, the nuclear binding energy of the isotope is
PhysicsNuclear PhysicsJEE Main
Options:
  • A \( \left(M_{\mathrm{O}}-17 M_{\mathrm{N}}\right) c^{2} \)
  • B \( \left(M_{\mathrm{O}}-8 M_{P}\right) c^{2} \)
  • C \( \left(8 M_{\mathrm{P}}+9 M_{\mathrm{N}}-M_{O}\right) c^{2} \)
  • D \( M_{\mathrm{O}} c^{2} \)
Solution:
2743 Upvotes Verified Answer
The correct answer is: \( \left(8 M_{\mathrm{P}}+9 M_{\mathrm{N}}-M_{O}\right) c^{2} \)
Binding energy = [ZMP + (A – Z) MN – MO] c2
=  [8MP + (17 – 8) MN – MO]c2 = (8 MP + 9MN – MO) c2

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