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  • Ionization potential of hydrogen atom is 13.6 V. Hydrogen atoms in the ground state are excited by monochromatic radiation of photon energy 12.1 eV. The spectral lines emitted by hydrogen atoms acc

Ionization potential of hydrogen atom is 13.6 V. Hydrogen atoms in the ground state are excited by monochromatic radiation of photon energy 12.1 eV. The spectral lines emitted by hydrogen atoms according to Bohr's theory will be

Option: 1

One


Option: 2

Two


Option: 3

Three


Option: 4

Four


Answers (1)

best_answer

Final energy of electron =-13.6+12.1=-1.51 \mathrm{eV}.
which is corresponds to third level i.e. \mathrm{n=3}. Hence

\text{number of spectral lines emitted}\mathrm{=\frac{n(n-1)}{2}=\frac{3(3-1)}{2}=3}

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