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NDA 1 2024 GAT, question 130

Topic: Physics

Q130

Which one of the following scientists mentioned that an electron in an atom could revolve in certain stable orbits without the emission of radiant energy ?

  1. (a) Ernest Rutherford
  2. (b) J.J. Thomson
  3. (c) Niels BohrCorrect answer
  4. (d) Albert Einstein

Solution.

Answer: (c) Niels Bohr

  1. Bohr postulated stationary allowed orbits in which an electron does not continuously radiate energy.
  2. Radiation occurs in transitions between allowed energy levels.
  3. This was not part of Rutherford’s original model.