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Structure of Atom question

2011 · Q58
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Structure of Atom question

2011 · Q58

NEETChemistryStructure of AtomMCQ+4 / −1
According to the Bohr theory, which of the following transitions in the hydrogen atom will give rise to the least energetic photon ?
  1. A
    n = 6 to n = 1
  2. B
    n = 5 to n = 4
  3. C
    n = 6 to n = 5
  4. D
    n = 5 to n = 3
View written solutionFree

Correct answer: C

We know that

ΔE∝[1n12−1n22]\Delta E \propto \left[ {{1 \over {n_1^2}} - {1 \over {n_2^2}}} \right]ΔE∝[n12​1​−n22​1​], where n2 > n1

∴\therefore∴ n = 6 and n = 5 will give least energetic photon.

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