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Mass-Energy and Binding Energy for JEE: 22 solved questions

Real JEE paper questions on mass-energy and binding energy, part of nuclei. Each opens with the options, the correct answer and a step-by-step solution. Papers run from 2007 to 2026. No sign-in needed to read them.

What this topic asks

• Mass defect and binding energy — 13 questions
• Binding energy curve and nuclear force — 9 questions

All 22 questions with solutions

• The binding energy per nucleon of ²⁰⁹₈₃Bi is MeV. [Take m(²⁰⁹₈₃Bi)=208.980388 u, mₚ=1.007825 u, mₙ=1.008665 u… JEE Main 2nd April 2nd Shift 2026
• Assuming the experimental mass of ¹²₆C as 12u, the mass defect of ¹²₆C atom is MeV/c². (Mass of proton =1.007… JEE Main 5th April 2nd Shift 2026
• The minimum frequency of photon required to break a particle of mass 15.348 amu into 4α particles is kHz. [Ma… JEE Main 22nd Jan 1st Shift 2026
• Given below are two statements: Statement I: For all elements, greater the mass of the nucleus, greater is th… JEE Main 24th Jan 1st Shift 2026
• The binding energy for the following nuclear reactions are expressed in MeV. ₂He³+₀n¹→₂He⁴+20 MeV ₂He⁴+₀n¹→₂H… JEE Main 24th Jan 2nd Shift 2026
• Given below are two statements. One is labelled as Assertion (A) and the other is labelled as Reason (R). Ass… JEE Main 23rd Jan 2nd Shift 2025
• Binding energy of a certain nucleus is 18×10⁸ J. How much is the difference between total mass of all the nuc… JEE Main 8th April 2nd Shift 2024
• If M₀ is the mass of isotope ¹²₅B, Mₚ and Mₙ are the masses of proton and neutron, then nuclear binding energ… JEE Main 8th April 2nd Shift 2024
• The energy equivalent of 1 g of substance is JEE Main 9th April 1st Shift 2024
• From the statements given below: (A) The angular momentum of an electron in n^th orbit is an integral multipl… JEE Main 1st Feb 2nd Shift 2024
• The atomic mass of ₆C¹² is 12.000000 u and that of ₆C¹³ is 13.003354 u. The required energy to remove a neutr… JEE Main 27th Jan 2nd Shift 2024
• For a nucleus ^A_ZX having mass number A and atomic number Z. A. The surface energy per nucleon (bₛ)=-a₁A^2/3… JEE Main 8th April 1st Shift 2023
• Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Asserti… JEE Main 13th April 2nd Shift 2023
• The mass of proton, neutron and helium nucleus are respectively 1.0073 u, 1.0087 u and 4.0015 u. The binding… JEE Main 1st Feb 1st Shift 2023
• Find the Binding energy per nucleon for ¹²⁰₅₀Sn. Mass of proton mₚ=1.00783 U, mass of neutron mₙ=1.00867 U an… JEE Main 4th Sept 2nd Shift 2020
• (Same situation as above: a nucleus of mass M+Δ m at rest decays into two daughter nuclei of equal mass /M2 e… JEE Main 2010
• The figure is a plot of binding energy per nucleon E_b, against the nuclear mass M; A, B, C, D, E, F correspo… JEE Main 2009
• Statement-1: Energy is released when heavy nuclei undergo fission or light nuclei undergo fusion. Statement-2… JEE Main 2008
• If M_O is the mass of an oxygen isotope ₈O¹⁷, M_P and M_N are the masses of a proton and a neutron respective… JEE Main 2007
• The mass defect in a particular reaction is 0.4 g. The amount of energy liberated is n×10⁷ kWh, where n= . (S… JEE Main 31st Jan 1st Shift 2024
• Nucleus A having Z=17 and equal number of protons and neutrons has 1.2 MeV binding energy per nucleon. Anothe… JEE Main 1st Feb 2nd Shift 2023
• From the given data, the amount of energy required to break the nucleus of aluminium ²⁷₁₃Al is x×10⁻³ J. Mass… JEE Main 25th July 2nd Shift 2021