# A photon beam of energy 12.1eV is incident on a hydrogen atom. The orbit to which electron of H-atom be excited is

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A photon beam of energy 12.1eV is incident on a hydrogen atom. The orbit to which electron of H-atom be excited is
A. 2^(nd)
B. 3^(rd)
C. 4^(th)
D. 5^(th)

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Correct Answer - B::D