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Q.

A Hydrogen atom and a Li++ ion are both in the second excited state. If lH and lLi are their respective electronic angular momenta, an EH and ELi their respective energies. then

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a

lH>lLI  and  EH>ELi

b

lH=lLI  and  EH

c

lH=lLI  and  EH>ELi

d

lH

answer is B.

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Detailed Solution

In second excited state n = 3So  lH=lLi=3h2πWhile E∝Z2 and ZH=1, ZLi=3SoELi=9EH or EH 
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