Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

Atoms and Nuclei question

2010 · Q77
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /NEET
  3. /Physics
  4. /Atoms and Nuclei
  5. /2010 · Q77

Atoms and Nuclei question

2010 · Q77

NEETPhysicsAtoms and NucleiMCQ+4 / −1
The binding energy per nucleon in deuterium and helium nuclei are 1.1 MeV and 7.0 MeV, respectively. When two deuterium nuclei fuse to form a helium nucleus the energy released in the fusion is
  1. A
    23.6 MeV
  2. B
    2.2 MeV
  3. C
    28.0 MeV
  4. D
    30.2 MeV
View written solutionFree

Correct answer: A

1H2

  • 1H2 →\to→ 2He4
  • Δ\Delta ΔE

    The binding energy per nucleon of a deuteron = 1.1 MeV

    ∴\therefore∴ Total binding energy = 2 × 1.1 = 2.2 MeV

    The binding energy per nucleon of a helium nuclei = 7 MeV

    ∴\therefore∴ Total binding energy = 4 × 7 = 28 MeV

    Hence, energy released

    Δ\Delta ΔE = (28 – 2 × 2.2) = 23.6 MeV
PreviousNext

More from Atoms and Nuclei

  • The mass of a 37​Li Li nucleus is 0.042 u less than the sum of the masses of all its nucleons. The binding energy per nucleon of 37​Li nucleus is nearly2010 · MCQ
  • The energy of a hydrogen atom in the ground state is − 13.6 eV. The energy of a He+ ion in the first excited state will be2010 · MCQ
  • The energy of a hydrogen atom in the ground state is − 13.6 eV. The energy of a He+ ion in the first excited state will be2010 · MCQ
  • An alpha nucleus of energy 21​ mv2 bombards a heavy nuclear target of charge Ze. Then the distance of closest approach for the alpha nucleus will be proportional to2010 · MCQ
  • In a Rutherford scattering experiment when a projectile of charge z1 and mass M1 approaches a target nucleus of charge z2 and mass M2, the distance of closest approach is r0. The energy of the projectile is2009 · MCQ
  • The ionization energy of the electron in the hydrogen atom in its ground state is 13.6 eV. The atoms are excited to higher energy levels to emit radiations of 6 wavelengths, Maximum wavelength of emitted radiation corresponds to the…2009 · MCQ
  • If M(A; Z), Mp and Mn denote the masses of the nucleus ZA​X, proton and neutron respectively in units of u (1 u = 931.5 MeV/c2) and BE represents its bonding energy in MeV, then2008 · MCQ
  • The ground state energy of hydrogen atom is − 13.6 eV. When its electron is in the first excited state, its excitation energy is2008 · MCQ