STANDARD Physics Bohr's Model MCQ Question
In which of the following Bohr's orbit (n) a hydrogen atom emits the photons of lowest frequency?
n = 2 to n = 1
n = 4 to n = 2
n = 4 to n = 1
n = 4 to n = 3
Correct Answer
Detailed Explanation
The energy level diagram shows that as we move to higher levels, the energy increases, but the energy gap between levels decreases. In the transition from n = 4 to n = 3, the energy released is E₄ - E₃, which is less than E₂ - E₁. Thus, the frequency of the photon emitted is lowest for n = 4 to n = 3.
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