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Grade 12Modern Physics

In a sample of hydrogen like atoms all of which are in ground state ,a photon beam containing photons of various energies is passed.In absorption spectrum ,five dark lines are observed.The number of bright lines in the emission spectrum will be(assume that all transitions take place)

mukesh shah

13 Years agoGrade 12

1 Answer

Arun Kumar

12 Years ago

Hello

Sigma of n-1

n= 6 since 5 dark lines

so

Sigma of r-1

where r goes to 6

=>15

Thanks & Regards

Arun Kumar

Btech, IIT Delhi

Askiitians Faculty

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