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Questions  >>  CBSE XII  >>  Physics  >>  Atoms
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Let En=1me4820n2h2 be the energy of the nth level of H- atom . If all the H- atoms are in the ground state and radiation of frequency (E2E1)/h falls on it ,

it will not be absorbed at all Some of atoms will move to the first excited state.all atoms will be excited to the n=2 state none of the above

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