Q.

If The energy of first excited state of Li+2 ion  is -X. Then the Ionization Energy of H-atom is

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a

-49X

b

94X

c

49X

d

3X

answer is C.

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Detailed Solution

En=E1(H)×Z2n2 -X=E1(H)×3222 E1(H)=-49X ⇒I.E = 49X
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