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How much energy is needed to obtain to H...

How much energy is needed to obtain to H-atom in first excted state from ground state ?

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The excitation to first excited state form ground state means that electron in H-atom is boosted upto 2 nd shell from 1st shell .
thus,` DeltaE = E_2 -E_1 ( therefore E_n =- ( 13.7)/(n^2) eV //"atom" )`
` = [ ( 13.7)/(4 + 13.7 )] = 10 . 275 eV //"atom"` .
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P BAHADUR-ATOMIC STRUCTURE-Exercise 9
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  8. A certain dye absorbs light of lamda = 4000 Å and then fluresces light...

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  9. A photon of 300 nm is abosorbed by a gas and then re-emits two photon...

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  10. Calculate the wavelength of first line of Lyman series of ten times i...

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  12. The ionisation energy of a H-like atom is 4R(h) a. Calculate the wav...

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  13. Calculate frequency, energy and wavelength of the radiation correspo...

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  14. The IE(1) of H is 13.6 eV. It is exposed to electromagnetic waves of 1...

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  15. 1.8 g hydrogen atoms are excited by a radiation. The study of species ...

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  16. Consider three electron jumps described below for the hydrogen atom ...

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  17. A series of lines in the spectrum of atomic H lies at wavelengths 656...

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  18. A hydrogen-like atom (atomic number Z) is in a higher excited state of...

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  19. Calculate the Rydberg constant RH if He^+ ions are known to have the ...

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  20. Consider the follwoing two elerctronic transition possibilites in a hy...

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  21. The angular momentum of electron in a Bohr's orbit of H atom is 4....

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