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MHT CET202617 April 2026Evening ShiftChemistryStructure of AtomActual

Find the energy of third stationary orbit of Bohr's model of hydrogen atom if the energy of ground state is -E J

Options

  1. A- E 2 J
  2. B- E 4 J
  3. C- E 9 J
  4. D- E 16 J

Correct answer

C. - E 9 J

Step-by-step solution

The energy of the n -th Bohr orbit of a hydrogen atom is given by E_n = E₁ n^2 Given that the energy of the ground state ( n=1 ) is E₁ = -E For the third stationary orbit, n=3 Substituting the values, we get E₃ = -E 3^2 = - E 9 J Answer: - E 9 J

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