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The hydrogen -like species Li^(2+) is in...

The hydrogen -like species `Li^(2+)` is in a spherically symmetric state `S_(1)` with one node. Upon absorbing light , the ion undergoes transition to a state `S_(2)`. The state `S_(2)` has one radial node and its energy is equal is to the ground state energy of the hydrogen atom.
The orbital angular momentum quantum number of the state `S_(2)` is

A

0

B

`sqrt(2)(h)/(2pi)`

C

1

D

`2 (h)/(2pi)`

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The correct Answer is:
B
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