JEE MainPhysicsAtoms and NucleiMCQ+4 / −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 :
- An = 1 n = 4
- Bn = 2 n = 5
- Cn = 2 n = 4
- Dn = 2 n = 3
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