Physics · 2019
JEE Main · 8 April 2019, Shift 1 · Q27
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…
Radiation coming from transitions $\displaystyle n=2$ to $\displaystyle \mathrm{n}=1$ of hydrogen atoms fall on $\displaystyle \mathrm{He}^{+}$ions in $\displaystyle \mathrm{n}=1$ and $\displaystyle \mathrm{n}=2$ states. The possible transition of helium ions as they absorb energy from the radiation is :
Official answer
(4)
$\displaystyle \mathrm{n}=2 \rightarrow \mathrm{n}=4$
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.