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Radiation coming from transition n = 2 t...

Radiation coming from transition `n = 2 to n = 1` of hydrogen atoms falls on helium in `n = 1 and n= 2` state. What are the possible transition of helium ions as they absorb energy from the radiation?

A

`n=2rarrn=3`

B

`n=1rarrn=4`

C

`n=2rarrn=5`

D

`n=2rarrn=4`

Text Solution

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The correct Answer is:
D
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