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

2024 · 1 Feb · Shift 1 · Q85
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Atoms and Nuclei
  5. /2024 · 1 Feb · Shift 1 · Q85

Atoms and Nuclei question

2024 · 1 Feb · Shift 1 · Q85

JEE MainPhysicsAtoms and NucleiNumerical+4 / −1
The radius of a nucleus of mass number 64 is 4.8 fermi. Then the mass number of another nucleus having radius of 4 fermi is 1000x\frac{1000}{x}x1000​, where xxx is ‾\underline{\hspace{2cm}}​.
Numerical answer
PreviousNext

More from Atoms and Nuclei

  • From the statements given below : (A) The angular momentum of an electron in nth  orbit is an integral multiple of ℏ. (B) Nuclear forces do not obey inverse square law. (C) Nuclear forces are spin dependent. (D) Nuclear…2024 · MCQ
  • A particular hydrogen-like ion emits the radiation of frequency 3×1015 Hz when it makes transition from n=2 to n=1. The frequency of radiation emitted in transition from n=3 to n=1 is 9x​×1015 Hz…2024 · Numerical
  • Which of the following nuclear fragments corresponding to nuclear fission between neutron (01​n) and uranium isotope (92235​U) is correct :2024 · MCQ
  • A hydrogen atom changes its state from n=3 to n=2. Due to recoil, the percentage change in the wave length of emitted light is approximately 1×10−n. The value of n is ​. [Given Rhc =13.6 eV,hc=1242 eV nm,h=6.6×10−34 J s…2024 · Numerical
  • According to Bohr's theory, the moment of momentum of an electron revolving in 4th  orbit of hydrogen atom is:2024 · MCQ
  • The disintegration energy Q for the nuclear fission of 235U→140Ce+94Zr+n is ​MeV. Given atomic masses of 235U:235.0439u;140Ce:139.9054u,94Zr:93.9063u;n:1.0086u…2024 · Numerical
  • An electron rotates in a circle around a nucleus having positive charge Ze. Correct relation between total energy (E) of electron to its potential energy (U) is :2024 · MCQ
  • If three helium nuclei combine to form a carbon nucleus then the energy released in this reaction is ​×10−2 MeV. (Given 1u=931 MeV/c2, atomic mass of helium =4.002603u…2024 · Numerical