- AZeeman effect
- BStark effect
- CLande's splitting
- ✓nuclear magnetic spin
In atomic physics, hyperfine structure is the different effects leading to small shifts and splitting in the energy levels of atoms, molecules and ions. The name is a reference to the fine structure which results from the interaction between the magnetic moments associated with electron spin and the electrons' orbital angular momentum. Hyperfine structure, with energy shifts is typically orders of magnitude smaller than the fine structure, results from the interactions of the nucleus $($or nuclei, in molecules$)$ with internally generated electric and magnetic fields.
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Statement $I$ : In hydrogen atom, the frequency of radiation emitted when an electron jumps from lower energy orbit $\left( E _{1}\right)$ to higher energy orbit $\left( E _{2}\right)$, is given as $hf = E _{1}- E _{2}$.
Statement $II$ : The jumping of electron from higher energy orbit $\left(E_{2}\right)$ to lower energy orbit $\left(E_{1}\right)$ is associated with frequency of radiation given as $f$ $=\left( E _{2}- E _{1}\right) / h$
This condition is Bohr's frequency condition. In the light of the above statements, choose the correct answer from the options given below