Question
A photon of energy 12.4 eV is completely absorbed by a hydrogen atom initially in the ground state so that it is excited. The quantum number of the excited state is
Answer: Option C
:
C
Let electron absorbing the photon energy reaches to the excited state n. Then using energy conservation
⇒−13.6n2=−13.6+12.4⇒−13.6n2=−1.2⇒n2=13.61.2=12⇒n=3.46≃4
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:
C
Let electron absorbing the photon energy reaches to the excited state n. Then using energy conservation
⇒−13.6n2=−13.6+12.4⇒−13.6n2=−1.2⇒n2=13.61.2=12⇒n=3.46≃4
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