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Ionisation potential of hydrogen atom is 13.6 eV . Hydrogen atom on the ground state rarely excited by monochromatic radiation of photon 12.1 eV . The special line emitted by a hydrogen atom according to Bohr's theory will be

Options

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

Correct answer

C. three

Step-by-step solution

From the relation E₃-E₁=(-1.5)-(-13.6)=12.1 As the energy is equal to the energy taken by n=1, n=2, n=3 . Hence there will be three spectral line.

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