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A H-like species Be^(3+) is in a spheric...

A H-like species `Be^(3+)` is in a spherically symmetric state `S_(1)` with two radial nodes. 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 to the ground state energy of the H-atom.
The orbital angular momentum of the state `S_(2)` is :

A

0

B

1

C

2

D

3

Text Solution

Verified by Experts

The correct Answer is:
B
In `S_(2` state , `E(Li^(2+))=K` (given)`" "K=(qk)/(n^(2))" "rArr" "n=3`
Since, `s_(2)` has one radial node. `3-l-1=1 rArr l=1`
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