Photons havings `3^(rd)` highest energy of this sample can be used to excited particular excited state of `LI^(+2)`, thenA. Wavelenght of photon used for this transition is 121.5 nmB. Final excitd state of `Li^(+2)` is 6C. kinetic energy of electron in intaial excited state of `Li^(+2)` is 13.6 eVD. All are correct

Photons havings `3^(rd)` highest energy of this sample can be used to

1.	Photons havings `3^(rd)` highest energy of this sample can be used to excited particular excited state of `LI^(+2)`, thenA. Wavelenght of photon used for this transition is 121.5 nmB. Final excitd state of `Li^(+2)` is 6C. kinetic energy of electron in intaial excited state of `Li^(+2)` is 13.6 eVD. All are correct
Answer» Correct Answer - D `3^(rd)` highest energetic photons `rArr(13.6-3.4) eV=10.2 eV`, transition is `2 to 1` `lambda=(hc)/(E)=(1240)/(10.2)nm` = `121.5nm` For H atom = for `Li^(+2)` ion `13.6xx1[1-(1)/(2^(2))] =13.6xx9[(1)/(3^(2))-(1)/(6^(2))]` `therefore`for `Li^(+2)` ion tramsition is `3 to 6` Initial excited state =3 Final excited state =6 K.E. of electron in initial excited state of `L^(+2)`= `13.6xx(3^(2))/(3^(2))`=`13.6 eV`

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