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Out of the following which one is not a possible energy for a photon to be emitted by hydrogen atom according to Bohr’s atomic model?

1. 1.9 eV
2. 11.1 eV
3. 13.6 eV
4. 0.65 eV

Correct answer: 0.65 eV

Solution

According to Bohr's model, the energy of photons emitted corresponds to the difference between two energy levels of the hydrogen atom. The energy levels are quantized, and 0.65 eV does not match any possible energy difference between these levels.

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