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 · 29 Jan · Shift 1 · Q84
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 · 29 Jan · Shift 1 · Q84

Atoms and Nuclei question

2024 · 29 Jan · Shift 1 · Q84

JEE MainPhysicsAtoms and NucleiNumerical+4 / −1
When a hydrogen atom going from n=2n=2n=2 to n=1n=1n=1 emits a photon, its recoil speed is x5 m/s\frac{x}{5} \mathrm{~m} / \mathrm{s}5x​ m/s. Where x=x=x=‾\underline{\hspace{2cm}}​. (Use, mass of hydrogen atom =1.6×10−27 kg=1.6 \times 10^{-27} \mathrm{~kg}=1.6×10−27 kg)
Numerical answer
PreviousNext

More from Atoms and Nuclei

  • Given below are two statements: Statement I : Most of the mass of the atom and all its positive charge are concentrated in a tiny nucleus and the electrons revolve around it, is Rutherford's model. Statement II : An atom is a spherical…2024 · MCQ
  • Hydrogen atom is bombarded with electrons accelerated through a potential difference of V, which causes excitation of hydrogen atoms. If the experiment is being performed at T=0 K, the minimum potential…2024 · Numerical
  • The ratio of the magnitude of the kinetic energy to the potential energy of an electron in the 5th excited state of a hydrogen atom is :2024 · MCQ
  • A electron of hydrogen atom on an excited state is having energy En​=−0.85 eV. The maximum number of allowed transitions to lower energy level is ​.2024 · Numerical
  • An electron revolving in nth  Bohr orbit has magnetic moment μn​. If μn​∝nx, the value of x is2024 · MCQ
  • In a nuclear fission reaction of an isotope of mass M, three similar daughter nuclei of same mass are formed. The speed of a daughter nuclei in terms of mass defect ΔM will be :2024 · MCQ
  • If the wavelength of the first member of Lyman series of hydrogen is λ. The wavelength of the second member will be2024 · MCQ
  • The mass defect in a particular reaction is 0.4 g. The amount of energy liberated is n×107 kWh, where n=​. (speed of light =3×108 m/s)2024 · Numerical