Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Atoms and Nuclei question

2020 · Q127
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /NEET
  3. /Physics
  4. /Atoms and Nuclei
  5. /2020 · Q127

Atoms and Nuclei question

2020 · Q127

NEETPhysicsAtoms and NucleiMCQ+4 / −1
The energy equivalent of 0.5 g of a substance is :
  1. A
    4.5×1013J4.5 \times {10^{13}}J4.5×1013J
  2. B
    1.5×1013J1.5 \times {10^{13}}J1.5×1013J
  3. C
    0.5×1013J0.5 \times {10^{13}}J0.5×1013J
  4. D
    4.5×1016J4.5 \times {10^{16}}J4.5×1016J
PreviousNext

More from Atoms and Nuclei

  • α-particale consists of :2019 · MCQ
  • The total energy of an electron in an atom in an orbit is –3.4 eV. Its kinetic and potential energies are, respectively.2019 · MCQ
  • The ratio of kinetic energy to the total energy of an electron in a Bohr orbit of the hydrogen atom, is2018 · MCQ
  • The ratio of wavelengths of the last line of Balmer series and the last line of Lyman series is2017 · MCQ
  • Given the value of Rydberg constant is 107 m−1, the wave number of the last line of the Balmer series in hydrogen spectrum will be2016 · MCQ
  • When an α-particle of mass m moving with velocity v bombards on a heavy nucleus of charge Ze, its distance of closest approach from the nucleus depends on m as2016 · MCQ
  • If an electron in a hydrogen atom jumps from the 3rd orbit to the 2nd orbit, it emits a photon of wavelength λ. When it jumps from the 4th orbit to the 3rd orbit, the corresponding wavelength of the photon will be2016 · MCQ
  • A nucleus of uranium decays at rest into nuclei of thorium and helium. Then2015 · MCQ