a beam of monoenergetic photons of energy 9 eV is incident on a hydrogen gas containing all atoms in ground state it is found that the beam is fully transmitted without absorption why
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Answer:
It is because ot requires atleast 10.2ev energy for electrons to go from n1 to n2 shell .
Explanation:
energy of n1 : -13.6ev
enegry of n2 : -3.4ev
so minimum required energy is -3.4-(-13.6)ev
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