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
Text Solution
Verified by ExpertsThe correct answer is:
C
Let electron absorbing the photon energy reaches to the excited state n. Then using energy conservation
⇒ ⇒ 
⇒ ⇒ 
⇒ ⇒ 
⇒ ⇒ n = 3.46 ≃ 4
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