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

2018 · Shift 2 · Q40
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Advanced
  3. /Physics
  4. /Atoms and Nuclei
  5. /2018 · Shift 2 · Q40

Atoms and Nuclei question

2018 · Shift 2 · Q40

JEE AdvancedPhysicsAtoms and NucleiMultiple correct+4 / −1
In a radioactive decay chain, 90232Th{}_{90}^{232}Th90232​Th nucleus decays to 82212Pb{}_{82}^{212}Pb82212​Pb nucleus. Let Nα{N_\alpha }Nα​ and Nβ{N_\beta }Nβ​ be the number of α\alphaα and β−{\beta ^ - }β− particles, respectively, emitted in this decay process. Which of the following statements is (are) true?
  1. A
    Nα=5{N_\alpha } = 5Nα​=5
  2. B
    Nα=6{N_\alpha } = 6Nα​=6
  3. C
    Nβ=2{N_\beta } = 2Nβ​=2
  4. D
    Nβ=4{N_\beta } = 4Nβ​=4
PreviousNext

More from Atoms and Nuclei

  • Consider a hydrogen-like ionized atom with atomic number Z with a single electron. In the emission spectrum of this atom, the photon emitted in the n=2 to n=1 transition has energy 74.8eV higher than the photon emitted in the n=3…2018 · Numerical
  • An electron in a hydrogen atom undergoes a transition from an orbit with quantum number ni​ to another with quantum number nf​. Vi​ and Vf​ are respectively the initial and final potential energies of the electron. If Vf​Vi​​=6.25…2017 · Numerical
  • 131I is an isotope of Iodine that B decays to an isotope of Xenon with a half-life of 8 days. A small amount of a serum labelled with 131I is injected into the blood of a person. The activity of the amount of 131I…2017 · Numerical
  • Highly excited states for hydrogen-like atoms (also called Rydberg states) with nuclear charge Ze are defined by their principle quantum number n, where n >> 1. Which of the following statement(s) is(are) true?2016 · Multiple correct
  • A hydrogen atom in its ground state is irradiated by light of wavelength 970 Ao​. Taking hc = 1.237 × 10 − 6 eVm and the ground state energy of hydrogen atom as − 13.6 eV, the number of lines present in the…2016 · Numerical
  • The isotope 512​B having a mass 12.014 u undergoes β-decay to 612​C. 612​C has an excited state of the nucleus (612​C*) at 4.041 MeV above its ground state. If 512​B decays to 612​C*, the maximum kinetic…2016 · Numerical
  • An accident in a nuclear laboratory resulted in deposition of a certain amount of radioactive material of half-life 18 days inside the laboratory. Tests revealed that the radiation was 64 times more than the permissible level required for…2016 · MCQ
  • The electrostatic energy of Z protons uniformly distributed throughout a spherical nucleus of radius R is given by E=53​4πε0​RZ(Z−1)e2​ The measured masses of the neutron, 11​H, 715​N…2016 · MCQ