Radiation coming from transitions n = 2 to n = 1 of hydrogen atoms fall on He+ ions in n = 1 and n = 2 states. The possible transition of helium ions as they absorb energy from the radiation is:

Radiation coming from transitions n = 2 to n = 1 of hydrogen atoms fal

1.	Radiation coming from transitions n = 2 to n = 1 of hydrogen atoms fall on He+ ions in n = 1 and n = 2 states. The possible transition of helium ions as they absorb energy from the radiation is:
A.	n = 2 → n = 3
B.	n = 1 → n = 4
C.	n = 2 → n = 5
D.	n = 2 → n = 4
Answer» E.

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Radiation coming from transitions n = 2 to n = 1 of hydrogen atoms fall on He+ ions in n = 1 and n = 2 states. The possible transition of helium ions as they absorb energy from the radiation is:

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