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InterviewSolution
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Sunny and Bunny have taken spectra for the following transitions .Spectra taken by sunny consited of bright lines on a dark background .Spectra taken by Bunny consisted of dark lines on a bright background .Identify the electronic transitions corrseponding to the spectra taken by sunny and Bunny .What are those spectra called? (i) n= 5 to n=2 (ii) n=3 to n=6 (iii) n=5 to n=7 (iv) n=3 to n=1 (v) n=1 to n=2 (vi) n=5 to n=3 |
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Answer» When an electron in an atom gains energy it gets excited to a higer energy state fron the ground state,The electron being unstable in the exiced state loses energy and comes back to the ground state either directly or in steps .During this process the bright lines corresponding to the transitions are formed on the dark background .This is called emission spectrum.When the electrons get exicted to higher energy and dark lines corresponding to the transitions are formed on the bright background.This is called absorption specrum . (i) n=5 to n=2 `rarr` emission spectum (ii) n=4 to n =6 `rarr` absorption spectrum (iii) n=5 to n =7 `rarr` absorption spectrum (iv) n=3 to n =1 `rarr` emission spectrum . (v) n= 1 to n=2 `rarr` absorption spectrum (vi) n=5 to n = 3 `rarr` emission spectrum |
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