The wavelengths of K α X–rays of two metals ‘A’ and ‘B’ are 4 1875 R and 1 675 R…
Physics · JEE Main · NTA Exams — Atoms and Nuclei
The wavelengths of Kα X–rays of two metals ‘A’ and ‘B’ are \(\frac{4}{1875 \mathrm{R}}\) and \(\frac{1}{675 \mathrm{R}}\) respectively, where ‘R’ is Rydberg constant. The number of elements lying between ‘A’ and ‘B’ according to their atomic numbers is :
- 3
- 6
- 5
- 4
Answer
(D) 4
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