Question

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

Answer 1

Answer:

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Answer 2

Answer:

It will be excited to 3 orbit

Explanation:

change in energy=Ef-Ei

Ein=13.4 ie in ground state

so Ef=1.5

which is energy for 3 orbit

by formula

E=13.6/n2