Physics · 2021
JEE Main · 26 February 2021, Shift 2 · Q14
The recoil speed of a hydrogen atom after it emits a photon in going from n =5 state to n =1 state will be:
The recoil speed of a hydrogen atom after it emits a photon in going from $\displaystyle \mathrm{n}=5$ state to $\displaystyle \mathrm{n}=1$ state will be :
Official answer
(2)
4.$\displaystyle 17$ m/s
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.