Q189 / 225 · JEE Main 2005 · Physics

The diagram shows the energy levels for an electron in a certain atom. Which transition shown represents the emission of a photon with the most energy ? Figure

  • Correct answer
    A
    III
  • B
    IV
  • C
    I
  • D
    II

Solution

$\Delta \mathrm{E} \propto\left(\frac{1}{n_1^2}-\frac{1}{n_2^2}\right)$

Hence, the correct answer is option: 'A'.

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