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Q. Which of the following spectral series in hydrogen atom give spectral line of $ 4860\overset{o}{\mathop{\text{A}}}\, $ ?

Rajasthan PETRajasthan PET 2012

Solution:

The spectral line of wavelength $ 4860\overset{o}{\mathop{\text{A}}}\, $ lies in the visible region. Since Balmer series lies in the visible region of the spectrum. Therefore, Balmer series gives spectral line of $ 4860\overset{o}{\mathop{\text{A}}}\, $ .