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

Options

  1. Aone
  2. Btwo
  3. Cthree
  4. Dfour

Correct answer

C. three

Step-by-step solution

According to question aligned & 12.1=13.6 ( 1 l^2 - 1 n^2 ) & n^2= 13.6 1.5 =9 & n=3 & aligned Number of spectral lines emitted aligned & = n(n-1) 2 = 3 2 2 & =3 aligned

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