MCQ
Henry Moseley studied characteristic X-ray spectra of elements. The graph which represents his observation correctly is: (Given $v =$ frequency of $X$-ray emitted; $Z =$ atomic number)
- A

- ✓

- C

- D






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Assertion $A$ : Energy of $2 s$ orbital of hydrogen atom is greater than that of $2\,s$ orbital of lithium.
Reason $R$ : Energies of the orbitals in the same subshell decrease with increase in the atomic number.
In the light of the above statements, choose the correct answer from the options given below.

