The hydrogen atom in the ground state ex...

The hydrogen atom in the ground state excited by means of light of `lambda=975` Å. How many different lines are possible in resultant spectrum ?

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Hydrogen atom in its ground state is excited by means of a monochromatic radiation of wavelength 970.6 Å. How many different transitions are possible in the resulting emission spectrum? Find the longest wavelength amongst these. (lonisation energy of hydrogen atom in its ground state is 13.6 eV and take h=6.6xx10^(-34)Js) Data : Wavelength of incident radiation = 970.6 Å = 970.6 X 10^(-10)m Ionisation energy of hydrogen atom in its ground state = 13.6 eV (i) Number of possible transitions = ? (ii) Longest wavelength emitted = ?

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