The wavelengths involved in the spectrum of deuterium ( _ 1 ^ 2 D ) are slightly…
Physics · JEE Main · NTA Exams — Atoms and Nuclei
The wavelengths involved in the spectrum of deuterium \(\left({ }_{1}^{2} \mathrm{D}\right)\) are slightly different from that of hydrogen spectrum, because
- sizes of the two nuclei are different
- nuclear forces are different in the two cases
- masses of the two nuclei are different
- attraction between the electron and the nucleus is different in the two cases.
Answer
(C) masses of the two nuclei are different
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