Sarthaks APP
0 votes
in Physics by (38.1k points)

The first four spectral lines in the Lyman serics of a H-atom are λ = 1218 Å, 1028Å, 974.3 Å and 951.4Å. If instead of Hydrogen, we consider Deuterium, calculate the shift in the wavelength of these lines.

1 Answer

0 votes
by (63.6k points)
selected by
Best answer

Reduced mass for

Reduced mass for

If for Hydrogen/Deuterium the wavelength is λH /λD

Thus lines are 1217.7 Å , 1027.7 Å, 974.04 Å, 951.143 Å.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.